Crystal Structure and IR Study of (C<Subscript>6</Subscript>H<Subscript>5</Subscript>NH<Subscript>3</Subscript>)[ZnCl(HPO<Subscript>3</Subscript>)]

Abstract  

A new hybrid phosphate, (C₆H₅NH₃)[ZnCl(HPO₃)], has been synthesized and its structure characterized from single-crystal X-ray diffraction. The title compound crystallizes in the orthorhombic space group Pbca (n. 61) with the unit-cell parameters: a = 9.8635(2) ?, b = 9.4516(10) ?, c = 22.2430(4) ?, Z = 8 and V = 2,073.62(6) ?³. The final R factors were R/ωR = 0.0361/0.0924. Its framework might be described as a layered structure with two (010)-parallel cationic and anionic layers. The IR spectrum of this phase shows characteristic bands of phosphite and anilinium groups.     

Synthesis,Characterization and X-Ray Crystal Structure of the Tri Aqua (3-Hydroxy-5-Hydroxymethyl-2-Methylpyridine-4-Carboxaldehyde-3-Methylisotiosemicarbazone: k<Superscript>3</Superscript>, O<Superscript>3</Superscript>, N<Superscript>7</Superscript>, N<Superscript>10</Superscript>) Ni(II) Nitrate

Abstract  

The title complex triaqua (3-hydroxy-5-hydroxymethyl-2-methylpyridine-4-carboxaldehyde-3-methylisothiosemicarbazone-k³,O³,N⁷,N¹⁰)Ni(II) nitrate ([Ni(PLITSC)(H₂O)₃](NO₃)₂, 1) represents the second transition metal complex incorporating an isothiosemicarbazide-pyridoxal based Schiff base that has been crystallographically characterized. Complex 1 crystallizes in a P21/n space group, with lattice constants: a = 11.2254(1) ?, b = 12.9941(2) ?, c = 12.8663(2), β = 96,7713(5)°, V = 1863.64(4) ?³, Z = 4, F(000) = 1016, R ₁ = 0.0681, wR ₂ = 0.1201. The central Ni(II) cation is found in a six-coordinate octahedral geometry formed by the tridentate Schiff base ligand PLITSC and three water molecules. The identity of 1 was further confirmed by elemental analysis, IR spectra, and conductometric and magnetochemical measurements.     

Synthesis,Crystal Structure and Thermal Properties of <Emphasis Type="Italic">N</Emphasis>-Acetyl-3-(2-furyl)-5-ferrocenyl-2-pyrazoline and <Emphasis Type="Italic">N</Emphasis>-Acetyl-3-(2-thienyl)-5-ferrocenyl-2-pyrazoline

Abstract  

Two novel ferrocenyl substituted N-acetyl-2-pyrazolines, N-acetyl-3-(2-furyl)-5-ferrocenyl-2-pyrazoline (3) and N-acetyl-3-(2-thienyl)-5-ferrocenyl-2-pyrazoline (4), have been synthesized and characterized by FTIR, ¹H-NMR, ¹³C-NMR techniques, elemental analysis and X-ray structure analysis. Thermal properties of these compounds have been determined by TGA, DTA and DSC analysis. Compound 3 (C₁₉H₁₈N₂O₂Fe) crystallizes in the monoclinic space group P21/c and Z = 4, with a = 8.6970(4) ?, b = 18.4725(9) ?, c = 11.0041(5) ?, β = 110.942(3)°. Compound 4 (C₁₉H₁₈N₂OSFe) crystallizes in the orthorhombic space group Fdd2 and Z = 16, with a = 84.242(2) ?, b = 13.5416(5) ?, c = 5.9405(2) ?, β = 90°. In terms of crystal packing, each compound shows different molecular arrangement, which are stabilized by C–H···O intermolecular weak hydrogen bonds, and/or C–H···π interactions.     

Crystal Structure of a New Quinternary Oxide: NaTl<Subscript>3</Subscript>Cu<Subscript>4</Subscript>Te<Subscript>2</Subscript>O<Subscript>12</Subscript>

Abstract  

A new quinternary oxide, NaTl₃Cu₄Te₂O₁₂, has been synthesized and characterized by single crystal X-ray diffraction. The reported material was synthesized by hydrothermal techniques using TlNO₃, CuO, TeO₂, and NaOH as reagents. The material exhibits a two-dimensional layered structure consisting of edge-shared CuO₆ and TeO₆ polyhedra separated by Na⁺ and Tl⁺ cations. NaTl₃Cu₄Te₂O₁₂ crystallizes in space group C2/m with a = 12.9800(17) ?, b = 9.3455(12) ?, c = 5.2335(7) ?, β = 104.276(2)°, V = 615.24(14) ?³, and Z = 2.     

Synthesis and Crystal Structures of Two Polymorphs of Trilanthanum Iridium Septaoxide (La<Subscript>3</Subscript>IrO<Subscript>7</Subscript>)

Abstract  

Two polymorphs of trilanthanum iridium septaoxide, La₃IrO₇, were prepared as single crystals using a molten cesium hydroxide flux and were structurally characterized using single-crystal X-ray diffraction. Polymorph A crystallizes in the orthorhombic space group Cmcm with unit cell dimensions of a = 11.2103(3) ?, b = 7.4982(2) ?, and c = 7.6110(2) ?. Polymorph B crystallizes into the monoclinic space group P2₁/n with the unit cell dimensions of a = 8.8512(5) ?, b = 5.7167(3) ?, c = 24.4454(13) ?, and β = 95.542(2)°. The crystal structure of polymorph A is isostructural to the family of compounds with formula Ln₃MO₇ (M = Nb⁵⁺, Mo⁵⁺, Ru⁵⁺, Ta⁵⁺, Re⁵⁺, Os⁵⁺, and Ir⁵⁺) while the crystal structure of polymorph B has no known corollaries.     

Synthesis and Structure of Ba<Subscript>5</Subscript>(V<Subscript>2</Subscript>O<Subscript>7</Subscript>)<Subscript>2</Subscript>Cl<Subscript>2</Subscript>

Abstract  A new barium chlorovanadate, Ba₅(V₂O₇)₂Cl₂, was isolated by a high-temperature (850 °C) reaction employing a CsCl/RbCl flux. The structure was determined by single crystal X-ray diffraction methods. This compound crystallizes in an orthorhombic crystal system, Pmmn (No. 59), with a = 11.558(2) ?, b = 15.164(3) ?, c = 10.023(2) ?, Z = 4 and V = 1756.7(6) ?³. The structure of Ba₅(V₂O₇)₂Cl₂ was determined by full-matrix, least-squares methods with R ₁ = 0.0398, wR ₂ = 0.1069 and GOF = 1.048 for all data. This new structure can be described as a composite lattice made up of mixed covalent and ionic moities. The extended framework is orchestrated by stacked [Ba(V₂O₇)Cl]³⁻ slabs that are interconnected by Ba²⁺ cations through Ba–O bonds to the [V₂O₇] units. The Ba²⁺ and Cl^- ions form BN-type “[BaCl]” sheets with pseudo-hexagonal windows that are centered by [V₂O₇]⁴⁻ pyrovanadate units. Graphical Abstract  The structure of a new chlorovanadate, Ba₅(V₂O₇)₂Cl₂, exhibits an interesting BN-type salt lattice that consists of an extended [BaCl] sheet containing pseudo-hexagonal windows that are centered by [V₂O₇] pyrovanadate units.      

The Zolmitriptan-Pyridine (1:1) and Zolmitriptan-Propiophenone (3:2) Inclusion Complex

Abstract  

The crystal structures of zolmitriptan with pyridine (I) and propiophenone (II) solvates have been determined by single crystal X-ray diffraction studies. Compound (I) crystallizes in the orthorhombic space group P2₁2₁2₁ with a = 8.5610(5) ?, b = 12.2709(7) ?, c = 19.6201(12) ?, V = 2061.1(2) ?³, and Z = 4, while compound (II) crystallizes in the monoclinic space group P2₁ with a = 15.085(1) ?, b = 19.656(12) ?, c = 21.0860(13) ?, β = 92.068(1)°, V = 6248(4) ?³ and Z = 4. The asymmetric unit of (I), C₁₆H₂₁N₃O₂·C₅H₅N, contains one zolmitriptan molecule and one pyridine solvate, while the asymmetric unit of (II), 3(C₁₆H₂₁N₃O₂)·2(C₉H₁₀O) comprises six zolmitriptan molecules and four propiophenone solvates. In both structures, the N–H···N hydrogen bonds, form an infinite helical chain and generate a C(11)-type motif in (I) and a D₂²(13)-type motif in (II). Both the complexes have layer structures, the layers being constructed from rings (cavity) of four zolmitriptan molecules, hydrogen bonded through N–H···N and N–H···O bonds, where the pyridine (I) and propiophenone (II) solvates are included in an R₄⁴(33) ring.     

Phenylamido and Diphenylamido Complexes of Chromium(II)

Abstract  Addition LiNHPh to a [(NacNac)Cr(μ-I)]₂ [NacNac = 2,4 pentane-N-N′-bis(2,6-diisopropylphenyl) ketiminato] in THF yields a dimeric anilido complex, 1, that crystallizes in P2₁/n with unit cell parameters a = 13.390(2) ?, b = 26.298(5) ?, c = 21.326(4) ?, β = 93.905(4)°, V = 7492(2) ?³ and Z = 4. The same reaction in the presence of aniline yields a monomeric anilido complex, 2, with a coordinated aniline molecule. Complex 2 crystallizes in P2 ₁ /c with unit cell parameters a = 28.530(5) ?, b = 10.8116(18) ?, c = 26.492(5) ?, β = 115.685(3)°, V = 7364(2) ?³ and Z = 8. Addition of aniline to isolated 1 yields 2. Addition of LiNPh₂ to [(NacNac)Cr(μ-I)]₂ in THF yields a monomeric complex that crystallizes in P2₁/n with the unit cell parameters a = 11.152(6) ?, b = 23.820(12) ?, c = 17.915(9) ?, β = 106.223(9)°, V = 4569(4) ?³ and Z = 4. All complexes have been spectroscopically and structurally characterized. Graphical Abstract  Addition of LiNHPh or LiNPh₂ to [(NacNac)Cr(μ-I)]₂ yields a dimeric or a monomeric complex whereas addition of LiNHPh in the presence of aniline yields the monomeric anilido complex.      

Synthesis and Structure of bis(β-Diketiminate) Chromium(II) Complexes

Abstract  

The new ligand 2,4-N,N′-bis(napthylamino)-pent-2-ene (L^napth) (1) has been synthesized and crystallizes in space group P2₁2₁2₁ with crystal cell parameters a = 8.196(3) ?, b = 9.119(3) ?, c = 25.746(10) ?, V = 1924.3(12) ?³ and Z = 4. The complexes bis[2,4-pentane-N,N′-bis(napthyl)ketiminato] chromium(II) (2), bis[2,4-pentane-N,N′-bis(isopropylphenyl)ketiminato] chromium(II) (3), and bis[2,4-pentane-N,N′-bis(tertbutylphenyl)ketiminato] chromium(II) (4) were synthesized and structurally characterized. Complex 2, the first complex reported with a bis(napthyl) β-diketiminate ligand, crystallizes in space group P − 1 with crystal cell parameters a = 12.0824(15) ?, b = 12.2462(16) ?, c = 14.8975(19) ?, α = 87.035(2)°, β = 80.615(2)°, γ = 62.756(2)°, V = 1932.9(4) ?³ and Z = 2. Complex 3 crystallizes in space group P2₁/n with crystal cell parameters a = 13.088(3) ?, b = 22.222(5) ?, c = 14.206(3) ?, β = 102.310(4)°, V = 4036.6(17) ?³ and Z = 4. Complex 4 crystallizes in space group P2₁/n with crystal cell parameters a = 20.831(6) ?, b = 11.575(4) ?, c = 21.373(7) ?, β = 107.241(5)°, V = 4922(3) ?³ and Z = 4. The degree of twist between the ligand planes is dependent on the steric bulk of the ligand.     

Copper(I) Complex [Cu(ca<Subscript>2</Subscript>dapte)(NCS)] with the Flexible N<Subscript>2</Subscript>S<Subscript>2</Subscript> Schiff-base Tridentate Ligand: Synthesis,Characterization and Crystal Structure

Abstract  

New copper(I) complex involving the flexible N₂S₂ Schiff-base ligand ca₂dapte [Cu(ca₂dapte)(NCS)], [ca₂dapte = N,N′-bis-(cinnamaldehyde)-1,2-di(o-iminophenylthio)ethane], has been synthesized and structurally characterized by X-ray diffraction analysis. The coordination polyhedron around the Cu(I) center is best described as a distorted tetrahedron. The flexible N₂S₂ Schiff-base ligand ca₂dapte acts as a tridentate ligand via two S atoms and one N atom, while the NCS^- ligand is coordinated to the metal ion through its nitrogen atom. Crystal data: space group P-1, a = 10.7486(7), b = 12.3737(13), c = 12.7578(11) ?, α = 89.385(7), β = 68.527(7), γ = 66.190(8)°; V = 1425.8(2) ?³, Z = 2, R = 0.0417, wR ₂ = 0.0744.     

Synthesis and Characterization of <Emphasis Type="Italic">N,N</Emphasis>-di(prop-2-ynyl)-<Emphasis Type="Italic">p</Emphasis>-toluidine

Abstract  

In order to investigate the intramolecular [4 + 2] cycloaddition, we prepared some new tertiary N-(5-substituted-2-furfuryl)-N-prop-2-ynyl-p-toluidines [Hergold-Brundić et al., Acta Cryst C56:e520, 2000; Mance and Jakopčić, Mol Divers 9:229, 2005; Mance, “unpublished results”] by the alkylation of secondary N-(5-substituted-2-furfuryl)-p-toluidines with the propargyl-bromide [Mance and Šindler-Kulyk, Synth Commun 26:923, 1996]. In the course of preparation of N-(5-methoxy-2-furfuryl)-N-prop-2-ynyl-p-toluidine [Mance, “unpublished results”], besides the main product (compound 1) (Scheme 1) we obtained N,N-di(prop-2-ynyl)-p-toluidine (compound 2) as the colourless crystals. The title compound 2, N,N-di(prop-2-ynyl)-p-toluidine, C₁₃H₁₃N, crystallizes in monoclinic C 2/c space group with unit cell parameters: a = 19.5319(9) ?, b = 7.5230(3) ?, c = 15.9000(7) ?, β = 112.554(5)°, V = 2157.64(18) ?³, Z = 8. The crystal structure is dominated by van der Waals forces only. The bond distances around amine N atom correspond to σ dominated bonds (1.467(2), 1.462(2) and 1.419(2) ?). The angles sum around amine N atom is in accord with sp³ hybridization (343°).     

Synthesis and Crystal Structures of Two Novel Complexes with <Emphasis Type="Italic">N</Emphasis>-[2-(5-Bromo-2-Hydroxybenzylideneamino)Ethyl]-4-Methylbenzenesulfonamide as Ligand

Abstract  

Two novel complexes constructed from the sulfonamide Schiff base ligand H ₂ L, N-[2-(5-bromo-2-hydroxybenzylideneamino)ethyl]-4-methylbenzene-sulfonamide, [Cu(HL)₂] (1) and [CuL(H₂O)] (2) are synthesized and characterized via X-ray single-crystal diffraction, elemental analysis, FT-IR and UV–Vis. 1 and 2 both form 1-D supramolecular architectures by π–π stacking interactions. 1 and 2 both crystallize in monoclinic, with space group C2/c and P2/c for 1 and 2, with unit cell parameters a = 27.640(18) ?, b = 7.907(5) ?, c = 17.945(14) ?, β = 118.27(2)°, V = 3454(4) ?³, Z = 4 for 1, and a = 16.758(5) ?, b = 7.272(2) ?, c = 15.080(4) ?, β = 106.334(5)°, V = 1763.6(9) ?³, Z = 4 for 2.     

Structural Studies of (Pyridine)<Subscript>3</Subscript>ZnFe(CO)<Subscript>4</Subscript> and (Pyridine)(Neocuproin)CdFe(CO)<Subscript>4</Subscript>

Abstract  

The structure of the previously reported (py)₃ZnFe(CO)₄ (py = pyridine) has been determined, confirming the monomeric nature of this species. The complex has average Zn–N and Zn–Fe bond lengths of 2.0970(7) and 2.4017(3) ?, and features a coordination geometry about Fe which is intermediate between trigonal bipyramidal and face monocapped tetrahedral. The space group is P2₁/c, with a = 8.22080(10) ?, b = 16.1668(3) ?, c = 15.4669(3) ?, β = 102.5869(11)°, V = 2006.21(6) ?³, D_calc. = 1.558 g/cm³ at 150(1) K. A monomeric cadmium analogue, (pyridine)(neocuproin)CdFe(CO)₄, has also been synthesized, and found to possess a similar geometry, with average Cd–N and Cd–Fe bond lengths of 2.352(2) and 2.5380(5) ?. The space group is P[`1] P\overline{1} with a = 10.8900(2) ?, b = 11.3042(3) ?, c = 15.5488(4) ?, α = 85.1251(10)°, β = 84.3468(14)°, γ = 72.0377(15)°, V = 1808.93(7) ?³, D_calc. = 1.478 g/cm³ at 150(1) K.     

Unusual Co-Crystallization of both Monomeric and Dimeric Forms of Cu[PhN(py)quin]Cl<Subscript>2</Subscript>

Abstract  

The aryl functionalized diquinolyl amine MesN(quin)₂ (1) and the pyridyl-quinolyl amine (2,6-iPr₂C₆H₃)N(py)quin (2) have been prepared via palladium catalyzed cross-coupling of substituted anilines with 2-chloroquinoline. The HBF₄ acid salts of (2,6-ⁱPr₂C₆H₃)N(quin)₂ (3) and MesN(py)quin (4), as well as the copper complex [Cu{PhN(py)quin}Cl₂] (5) have been prepared in order to probe the effect that ligand coordination has on its geometry. The molecular structures of each have been determined by X-ray crystallography. The free ligands 1 and 2 crystallize in three-bladed propellar conformations, having smaller degrees of “pitch” between the two heterocycles than either has with the aryl “blade”, allowing for greater heterocycle π-system overlap with the amine lone pair. Acid confinement of similar ligands in 3 and 4 results in forced coplanarity of the two heterocycles, which coordinate the HBF₄ proton in an asymmetric fashion. The copper complex 5 crystallizes with both monomeric and dimeric forms present in the asymmetric unit. Crystal data: (1) Space group P2₁/c, a = 14.058(3), b = 12.202(2), c = 12.831(3) ?, β = 104.61(3)°, V = 2129.8(8) ?³, Z = 4, R = 0.0596, wR₂ = 0.1453. (2) Space group P2₁/c, a = 22.250(4), b = 8.628(2), c = 23.031(5) ?, β = 92.88(3)°, V = 4370(2) ?³, Z = 8, R = 0.0514, wR₂ = 0.1323. (3) Space group Pbca, a = 13.886(3), b = 18.016(4), c = 21.347(4) ?, V = 5340(2) ?³, Z = 8, R = 0.0722, wR₂ = 0.1635. (4) Space group P2₁/c, a = 10.629(2), b = 18.489(4), c = 10.907(2) ?, β = 92.88(3), V = 2140.6(7) ?³, Z = 4, R = 0.0551, wR₂ = 0.1531. (5) Space group \text P[`1]{\text P}\bar{1}, a = 9.706(2), b = 11.325(2), c = 17.322(4) ?, α = 98.28(3), β = 94.85(3), γ = 91.83(3)°, V = 1875.6(7) ?³, Z = 1, R = 0.0481, wR₂ = 0.0946.     

Crystal Structure of [Zn(2-Bromobenzoato)<Subscript>2</Subscript>]<Subscript><Emphasis Type="Italic">n</Emphasis></Subscript> and [Zn(2-Bromobenzoato)<Subscript>2</Subscript>(<Emphasis Type="Italic">N</Emphasis>-Methylnicotinamide)]<Subscript>2</Subscript>

Abstract  

The syntheses and structural characterizations of two novel 2-bromobenzoatozinc(II) complexes—[Zn(2-BrC₆H₄COO)₂] _n (I) and [Zn(2-BrC₆H₄COO)₂(mnad)]₂ (II), where mnad is N-methylnicotinamide are reported. Compound (I) crystallized with a monoclinic lattice (space group P2₁/c) and is polymeric in solid state. Its cell parameters are: a = 7.37220(10) Å, b = 19.9639(3) Å, c = 30.2756(5) Å, β = 94.7510(7)°, V = 4440.59(12) ų, Z = 4. The coordination environments of all zinc atoms are distorted tetrahedra built from four carboxylate oxygen atoms coming from four 2-bromobenzoato ligands. Compound (II) crystallized with a monoclinic lattice (space group P2₁/c) with a = 11.7488(2) Å, b = 20.3683(3) Å, c = 9.30130(10) Å, β = 100.3941(11)°, V = 2189.30(5) ų, Z = 2. This dimeric molecule features a paddle-wheel [Zn₂O₈] cage in solid state; the coordination environment of the central atom is square pyramidal consisting of four carboxylate oxygen atoms and the pyridine N atom of the mnad ligand.     

Li<Subscript>2</Subscript>HPO<Subscript>3</Subscript>, H<Subscript>2</Subscript>O: Crystal Structure and IR Spectrum

Abstract  

Crystal structure of Li₂HPO₃,H₂O was determined by single-crystal X-Ray diffraction analysis at 173(2) K. It crystallizes in the monoclinic system (P2_1/c) with the parameters: a = 5.0322(9) ?, b = 8.9795(17) ?, c = 17.088(4) ?, β = 92.672(16)° and Z = 8. The structure was refined to R = 0.0237 and ωR = 0.0650 for 1449 reflexions. The framework of Li₂HPO₃, H₂O can be described as layers perpendicular to the crystallographic c axis. The structure contains two types of Li-tetrahedrons. In one kind each O atom belongs to one HPO₃ group, while in the second kind one apex is an O from water. A network of hydrogen bonds interactions insures the connection between the layers.     

Synthesis and Structure of Chromium(II) Complexes Supported by Both a β-Diketiminate and an Amidinate Ligand

Abstract  

The complexes (bis(2,6-diisopropylphenyl)pentane-2,4-ketiminato)(μ₂-diisopropylacetamidinato) chromium(II) (1) and (bis(2,6-diisopropylphenyl)pentane-2,4-ketiminato)(μ₂-dicyclohexylacetamidinato) chromium(II) (2) have been synthesized and structurally characterized. Complex 1 crystallizes in space group Pbcn with crystal cell parameters a = 10.7183(13) ?, b = 16.4093(19) ?, c = 20.687(2) ?, V = 3,638.3(7) ?³ and Z = 4. Complex 2 crystallizes in triclinic space group P-1 with crystal cell parameters a = 10.750(3) ?, b = 12.174(3) ?, c = 16.308(4) ?, α = 75.903(4)°, β = 82.137(4)°, γ = 85.511(4), V = 2,048.4(8) ?³ and Z = 2. The complexes adopt a spiro distorted square planar geometry and have similar structural parameters.     

Synthesis and Crystal Structure of a Fe(III) Complex with an Isonicotinyl Hydrazone Ligand, [Fe(N-Isonicotinamidosalicylaldimine)Cl<Subscript>2</Subscript>]

Abstract  

A new complex [Fe(N-isonicotinamidosalicylaldimine)Cl₂] has been synthesized by template reaction at room temperature and structurally characterized by X-ray single-crystal analysis. The complex crystallizes in triclinic crystal system, Pī space group, a = 7.273(6) ?, b = 10.015(8) ?, c = 10.479(8) ?, α = 71.067(10)°, β = 89.964(11)°, γ = 75.528(10)°, V = 696.4(9) ?³ and Z = 2. The coordination geometry around the Fe(III) ion is a distorted trigonal bipyramid with a O₂N₁Cl₂ donor set. In the crystal structure, N–H···Cl, C–H···O and C–H···Cl hydrogen bonds and π···π stacking interactions involving aromatic and unclosed π-systems link the molecules to form supramolecular double layers.     

Synthesis and Structure of Bis(3-dimethylammonium-1-propyne)pentachlorobismuthate(III) (C<Subscript>5</Subscript>H<Subscript>10</Subscript>N)<Subscript>2</Subscript>BiCl<Subscript>5</Subscript>

Abstract  

The synthesis and crystal structure are given for the bis(3-dimethylammonium-1-propyne)pentachlorobismuthate(III) salt. An X-ray investigation has shown that the title compound crystallizes at 298 K in a centrosymmetric monoclinic system, space group C2/c with the following lattice parameters a = 12.6215(4) ?, b = 18.9228(5) ?, c = 8.3134(2) ?, β = 104.100(2)°, V = 1925.70(9) ?³. The structure was solved from 7,716 independent reflections with R ₁ = 0.0457 and wR ₂ = 0.0906, and refined with 85 parameters. The structure consists of disordered 3-dimethylammonium-1-propyne, C₅H₉NH⁺ cations and polynuclear anions in which slightly distorted (BiCl₅)²⁻ anions, sharing an apex are interconnected in chains. These chains are themselves interconnected by means of N–H···Cl originating from the C₅H₉NH⁺ entities, forming a three-dimensional network.     

Pentacarbonyl(trimethylamine)chromium and Pentacarbonyl(trimethylamine)Molybdenum

Abstract  

Pentacarbonyl(trimethylamine)chromium (1) and pentacarbonyl(trimethylamine)molybdenum (2) are isomorphous and crystallize in the space group P2₁/n, a = 6.8267(14) ?, b = 11.269(2) ?, c = 14.692(3) ?, β = 102.89(3)°, V = 1,101.8(4) ?³, Z = 4 for 1 and a = 6.949(5) ?, b = 11.362(5) ?, c = 14.927(5) ?, β = 102.639(5)°, V = 1,150.0(10) ?³, Z = 4 for 2; both compounds possess distorted octahedral molecular geometries that result from the steric influence of the coordinated amine ligand.