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1.
Carsten Wieczorrek 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):1085-1087
In bis(1,2‐ethanediamine‐N,N′)bis[triiodo(1?)‐I]copper, [Cu(I3)2(C2H8N2)2], the triiodide anions form chains parallel to [001]. The central metal ion (site symmetry 2/m) of the complex cation is coordinated to four N atoms and to two I atoms. The geometry of the square‐bipyramidal complex is as expected, with d(Cu—N) = 2.006 (5) and d(Cu—I) = 3.3600 (9) Å. 相似文献
2.
J. Zukerman‐Schpector Antonio Carlos Trindade P. O. Dunstan 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):763-765
In both title compounds, (acetylacetonato‐O,O′)bis(3‐cyanopyridine‐N)nickel(II), (I), and (acetylacetonato‐O,O′)bis(4‐cyanopyridine‐N)nickel(II), (II), both [Ni(C5H7O2)2(C6H4N2)2], the NiII atom, which is situated on a centre of symmetry, is octahedrally coordinated. Distances and angles for (I) and (II), respectively, are: Ni—O 2.009 (2)/2.016 (2) and 2.0110 (16)/2.0238 (18) Å, Ni—N 2.116 (3) and 2.179 (2) Å, O—Ni—O 91.86 (10) and 90.19 (7)°, and O—Ni—N 91.27 (11)/90.19 (11) and 89.65 (8)/90.79 (7)°. 相似文献
3.
Eleonora Freire Sergio Baggio Juan Carlos Muoz Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):m221-m224
Two new nickel nitrates, diaquabis(3,4,7,8‐tetramethyl‐1,10‐phenanthroline‐κ2N,N′)nickel(II) dinitrate methanol solvate, [Ni(C16H16N2)2(H2O)2](NO3)2·CH4O, (I), and triaqua[2,4,6‐tris(2‐pyridyl)‐1,3,5‐triazine‐κ3N1,N2,N6]nickel(II) dinitrate trihydrate, [Ni(C18H12N6)(H2O)3](NO3)2·3H2O, (II), are reported. In both structures, the cation is octahedrally coordinated, to two bidentate 3,4,7,8‐tetramethyl‐1,10‐phenanthroline (tmp) and two water molecules in (I), and to one tridentate 2,4,6‐tris(2‐pyridyl)‐1,3,5‐triazine (tpt) and three water molecules in (II). Both structures are stabilized by extensive hydrogen‐bonding interactions. 相似文献
4.
Eleonora Freire Sergio Baggio Leopoldo Suescun Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(8):905-908
Three cis nickel–dithiocyanate (SCN) complexes with different N,N′‐bidentate bases have been prepared and their crystal structures determined: bis(2,2′‐bipyridine‐N,N′)bis(thiocyan‐ato‐N)nickel(II), [Ni(SCN)2(C10H8N2)2], bis(1,10‐phenanthroline‐N,N′)bis(thiocyanato‐N)nickel(II), [Ni(SCN)2(C12H8N2)2], and bis(2,9‐dimethyl‐1,10‐phenanthroline‐N,N′)bis(thiocyanato‐N)nickel(II) monohydrate, [Ni(SCN)2(C12H8N2)2]·H2O. Distortions due to ligand size are discussed. 相似文献
5.
Jaromír Marek Pavel Kopel Zdenk Trvní
ek 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m558-m560
In the crystal structure of the title compound, [N,N′‐bis(3‐aminopropyl)ethylenediamine‐κ4N,N′,N′′,N′′′][1,3,5‐triazine‐2,4,6(1H,3H,5H)‐trithionato(2−)‐κ2N,S]zinc(II) ethanol solvate, [Zn(C8H22N4)2(C3HN3S3)]·C2H6O, the ZnII atom is octahedrally coordinated by four N atoms [Zn—N = 2.104 (2)–2.203 (2) Å] of a tetradentate N‐donor N,N′‐bis(3‐aminopropyl)ethylenediamine (bapen) ligand and by two S and N atoms [Zn—S = 2.5700 (7) Å and Zn—N = 2.313 (2) Å] of a trithiocyanurate(2−) (ttcH2−) dianion bonded as a bidentate ligand in a cis configuration. The crystal structure of the compound is stabilized by a network of hydrogen bonds. 相似文献
6.
Kishie Noguchi Takashi Tamura Hidetaka Yuge Takeshi Ken Miyamoto 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(2):171-173
In two linkage isomers, bis[1,3‐dimethyl‐2,4,6(1H,3H,5H)‐pyrimidinetrionato]‐C5,O4‐(ethylenediamine‐N,N′)platinum(II), [Pt(C6H7N2O3)2(C2H8N2)], (I), and bis[1,3‐dimethyl‐2,4,6(1H,3H,5H)‐pyrimidinetrionato‐C5](ethylenediamine‐N,N′)platinum(II) dihydrate, [Pt(C6H7N2O3)2(C2H8N2)]·2H2O, (II), crystallized from the same aqueous solution containing [Pt(en)(OH)2] and 1,3‐dimethylbarbituric acid (Hdmbarb) in a 1:2 molar ratio, a pair of monodentate dmbarb? anions coordinate to the Pt atom at tetrahedral C atoms for (II), while one dmbarb? anion coordinates at the carbon and the other at a deprotonated enol oxygen for (I). The Pt—C distances in (I) and (II) are comparable: 2.112 (4) Å for (I), and 2.114 (4) and 2.117 (4) Å for (II). 相似文献
7.
Zhen Chen Ru‐Ji Wang Xiao‐Ying Huang Jing Li 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):1100-1103
Two new molecular metal chalcogenides, tris(ethylenediamine‐N,N′)manganese(II) tetratelluride, [Mn(C2H8N2)3]Te4, (I), and bis[tris(ethylenediamine‐N,N′)iron(II)] pentaselenodiantimonate(III), [Fe(C2H8N2)3]2(Sb2Se5), (II), containing the isolated molecular building blocks Te42? and Sb2Se54?, have been synthesized by solvothermal reactions in an ethylenediamine solution at 433 K. The anion Te42? in (I) is a zigzag oligometric chain with Te—Te bond lengths in the range 2.709–2.751 Å. There is a very short contact [3.329 (1) Å] between a pair of neighboring Te42? anions. In (II), each Sb atom is surrounded by three Se atoms to give a tripodal coordination. One of the three independent Se atoms is a μ2‐bridging ligand between two Sb atoms; the other two are terminal. 相似文献
8.
Yang Kim Brian W. Skelton Allan H. White 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m546-m548
In title anhydrous catena‐poly[[trans‐bis(ethane‐1,2‐diamine‐κ2N,N′)copper(II)]‐μ‐dithionato‐κ2O:O′], [Cu(S2O6)(C2H8N2)2]n or [{H2N(CH2)2NH2}2Cu(O·O2SSO2·O)]∞, successive Cu atoms are bridged by a single doubly charged dithionate group, forming a one‐dimensional polymer with inversion centres at the metal atoms and the mid‐point of the S—S bond [Cu—O = 2.5744 (15) Å]. In title (hydrated) trans‐diaquabis(propane‐1,3‐diamine‐κ2N,N′)copper(II) dithionate, [Cu(C3H10N2)2(H2O)2](S2O6) or [{H2N(CH2)3NH2}2Cu(OH2)2](S2O6), both ions have imposed 2/m symmetry. The `axial' anion components are displaced by a pair of water ligands [Cu—O = 2.439 (3) Å], the shorter Cu—O distance being compensated by the lengthened Cu—N distance [2.0443 (18), cf. 2.0100 (13) and 2.0122 (16) Å]. 相似文献
9.
Veysel T. Yilmaz Ahmet Karadag Carsten Thne Regine Herbst‐Irmer 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):948-949
In the neutral title complex, trans‐bis(2,2′‐iminodiethanol‐N,O)bis(isothiocyanato)nickel(II), [Ni(NCS)2(C4H11NO2)2], the isothiocyanate ions and the diethanolamine molecules act as monodentate and bidentate ligands, respectively. The NiII ion exhibits a distorted octahedral configuration with crystallographically imposed inversion symmetry and NNCS—Ni—Namine and NNCS—Ni—Oamine bond angles of 88.78 (10) and 89.44 (10)°, respectively. The Ni—N bond distances are in the range 2.069 (3)–2.096 (2) Å. The molecules are linked by hydrogen bonds to form a three‐dimensional infinite lattice. 相似文献
10.
Chong‐Hyeak Kim Sueg‐Geun Lee 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(7):m421-m423
The title compound, [Ni(C3H10N2)2(H2O)2](C6H6NO3S)2, contains alternating layers of sulfanilate anions and diaquabis(1,3‐propanediamine)nickel(II) cations. The Ni atom lies on an inversion centre and is hexacoordinated by the 1,3‐propanediamine ligands, which function as N,N′‐bidentate ligands, and the water molecules, which are in a trans arrangement. The sulfanilate anions are arranged in layers, with the sulfonate and amine groups directed towards opposite sides of the layer. The structure is stabilized by a network of hydrogen bonding between the O and N atoms of the sulfanilate anions, the water molecules, and the N atoms of the 1,3‐propanediamine ligands. 相似文献
11.
Graham King Philip Coppens Milan Gembicky 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(7):m329-m332
Two new salts of the cation [CuI(dmp)2]+ (dmp is 2,9‐dimethyl‐1,10‐phenanthroline, C14H12N2), namely bis[bis(2,9‐dimethyl‐1,10‐phenanthroline‐κ2N,N′)copper(I)] bis(hexafluorophosphate) hemi[bis(4‐pyridylmethylidene)hydrazine] acetonitrile solvate, [Cu(C14H12N2)2]2(PF6)2·0.5C12H10N4·C2H3N or [Cu(dmp)2]2(PF6)2·0.5(bpmh)·CH3CN [bpmh is bis(4‐pyridylmethylidene)hydrazine, C12H10N4], (I), and bis(2,9‐dimethyl‐1,10‐phenanthroline‐κ2N,N′)copper(I) dicyanamide, [Cu(C14H12N2)2](C2N3) or [Cu(dmp)2][N(CN)2], (II), are reported. The Cu—N bond lengths and the distortion from idealized tetrahedral geometry of the dmp ligands are discussed and compared with related compounds. The bpmh molecule in (I) is π–π stacked with a dmp ligand at a distance of 3.4 Å, rather than coordinated to the metal atom. The molecule lies across an inversion center in the crystal. In (II), the normally coordinated dicyanamide molecule is present as an uncoordinated counter‐ion. 相似文献
12.
Takafumi Yoshida Takayoshi Suzuki Sumio Kaizaki 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(11):1274-1276
The complex cation in [4,5-dihydro-4,4,5,5-tetramethyl-2-(2-pyridyl-κN)imidazol-1-oxyl 3-oxide-κO3](nitrato-κ2O,O′)(N,N,N′,N′-tetramethyl-1,2-ethanediamine-κ2N,N′)nickel(II) hexafluorophosphate dichloromethane solvate, [Ni(NO3)(C6H16N2)(C12H16N3O2)]PF6·CH2Cl2, is the first example of a nitronyl nitroxide complex of a transition metal ion having d electrons in which nitrate is coordinated as a bidentate ligand. Owing to the smaller steric requirement of NO3−, the Ni—O(nitroxide) bond length [2.014 (2) Å] is remarkably shorter than that in the corresponding β-diketonate complexes [2.052 (4)–2.056 (2) Å]. 相似文献
13.
Paul V. Bernhardt Nathan L. Kilah 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(5):m245-m249
The pendent‐arm macrocyclic hexaamine trans‐6,13‐dimethyl‐1,4,8,11‐tetraazacyclotetradecane‐6,13‐diamine (L) may coordinate in tetra‐, penta‐ or hexadentate modes, depending on the metal ion and the synthetic procedure. We report here the crystal structures of two pseudo‐octahedral cobalt(III) complexes of L, namely sodium trans‐cyano(trans‐6,13‐dimethyl‐1,4,8,11‐tetraazacyclotetradecane‐6,13‐diamine)cobalt(III) triperchlorate, Na[Co(CN)(C13H30N6)](ClO4)3 or Na{trans‐[CoL(CN)]}(ClO4)3, (I), where L is coordinated as a pentadentate ligand, and trans‐dicyano(trans‐6,13‐dimethyl‐1,4,8,11‐tetraazacyclotetradecane‐6,13‐diamine)cobalt(III) trans‐dicyano(trans‐6,13‐dimethyl‐1,4,8,11‐tetraazacyclotetradecane‐6,13‐diaminium)cobalt(III) tetraperchlorate tetrahydrate, [Co(CN)2(C14H32N6)][Co(CN)2(C14H30N6)](ClO4)4·4H2O or trans‐[CoL(CN)2]trans‐[Co(H2L)(CN)2](ClO4)4·4H2O, (II), where the ligand binds in a tetradentate mode, with the remaining coordination sites being filled by C‐bound cyano ligands. In (I), the secondary amine Co—N bond lengths lie within the range 1.944 (3)–1.969 (3) Å, while the trans influence of the cyano ligand lengthens the Co—N bond length of the coordinated primary amine [Co—N = 1.986 (3) Å]. The Co—CN bond length is 1.899 (3) Å. The complex cations in (II) are each located on centres of symmetry. The Co—N bond lengths in both cations are somewhat longer than in (I) and span a narrow range [1.972 (3)–1.982 (3) Å]. The two independent Co—CN bond lengths are similar [1.918 (4) and 1.926 (4) Å] but significantly longer than in the structure of (I), again a consequence of the trans influence of each cyano ligand. 相似文献
14.
Paul V. Bernhardt 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):744-746
The title pendent‐arm macrocyclic hexaamine ligand binds stereospecifically in a hexadentate manner, and we report here its isomorphous NiII and ZnII complexes (both as perchlorate salts), namely (cis‐6,13‐dimethyl‐1,4,8,11‐tetraazacyclotetradecane‐6,13‐diamine‐κ6N)nickel(II) diperchlorate, [Ni(C12H30N6)](ClO4)2, and (cis‐6,13‐dimethyl‐1,4,8,11‐tetraaza‐cyclotetradecane‐6,13‐diamine‐κ6N)zinc(II) diperchlorate, [Zn(C12H30N6)](ClO4)2. Distortion of the N—M—N valence angles from their ideal octahedral values becomes more pronounced with increasing metal‐ion size and the present results are compared with other structures of this ligand. 相似文献
15.
Veysel T. Yilmaz Sema Caglar William T. A. Harrison 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(1):m35-m38
The structures of trans‐bis[2‐(aminomethyl)pyridine‐κ2N,N′]bis(saccharinato‐κN)zinc(II), [Zn(C7H4NO3S)2(C6H8N2)2], (I), and [2‐(aminoethyl)pyridine‐κ2N,N′]bis(saccharinato‐κN)zinc(II), [Zn(C7H4NO3S)2(C7H10N2)], (II), exhibit octa‐ and tetrahedrally coordinated ZnII atoms, respectively. The diamine ligands behave as N,N′‐bidentate ligands, while saccharinate (sac) is coordinated through the N atom. In (I), the complex lies about an inversion centre with the Zn atom disordered and displaced by 0.256 (2) Å from a centre of symmetry towards a sac N atom. The crystal structure of (I) is stabilized by N—H⋯O hydrogen bonds and the crystal packing of (II) is determined by hydrogen bonding as well as weak π–π stacking interactions between the sac ligands. 相似文献
16.
Miguel Harvey Sergio Baggio Alvaro Mombrú Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(7):771-774
The three zinc sulfate complexes presented herein display three completely different coordination modes, viz triaqua(1,10‐phenanthroline‐N,N′)(sulfato‐O)zinc(II) hydrate, [Zn(SO4)(C12H8N2)(H2O)3]·H2O (octahedral, monomeric), bis(μ‐sulfato‐O:O′)bis[(2,9‐dimethyl‐1,10‐phenanthroline‐N,N′)zinc(II)], [Zn2(SO4)2(C14H12N2)2] (tetrahedral, dimeric), and catena‐poly[[diaqua(2,2′‐bipyridyl‐N,N′)zinc(II)]‐μ‐(sulfato‐O:O′)], [Zn(SO4)(C10H8N2)(H2O)2]n (octahedral, polymeric, twofold crystallographic symmetry). In the first, the sulfate is monodentate, while in the other two it acts as a bidentate bridge between two different Zn centers. There is a variety of sulfate S—O bond lengths, depending on the different coordination conditions and hydrogen‐bonding interactions. 相似文献
17.
Dana M. Hatch William F. Wacholtz Joel T. Mague 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(11):m452-m453
The title compound, bis(μ‐1,2‐benzenethiolato)‐1:2κ3S,S′:S′;2:1κ3S,S′:S′‐bis[(2,2′‐bipyridine‐κ2N,N′)zinc(II)], [Zn2(μ‐C6H4S2)2(C10H8N2)2], crystallizes with the dinuclear molecule located on a center of symmetry. The coordination geometry about the Zn atom is a modestly distorted trigonal bipyramid, with the axial ligating atoms at an angle of 170.81 (4)° and the angles in the equatorial plane in the range 112.94 (4)–129.95 (4)°. Weak π‐stacking interactions between bipyridine ligands on adjacent molecules [interplanar spacing = 3.315 (3) Å] and a possible weak intermolecular C—H⋯S hydrogen bond (H⋯S = 2.84 Å) are seen in the crystal. 相似文献
18.
Jun Hwan Kim Soo‐Gyun Roh Jong Hwa Jeong 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(12):e543-e544
The title compound, [Cu2(C14H23N5)2(CH3O)2](PF6)2, has a doubly methoxo‐bridged centrosymmetric copper dimer cation involving two tridentate bis(pyrazolyl)amine ligands. The geometry of each CuII atom is a distorted square pyramid with two N atoms of the pyrazole in bis[2‐(3,5‐dimethyl‐1‐pyrazolyl)ethyl]amine (bpea) and two μ2‐bridging O atoms of the methoxo ligands forming the basal plane, and the amine N atom occupying the axial position. In the bridging plane, the Cu—O bond lengths are 1.940 (4) and 1.942 (4) Å, and the bond angles for O—Cu—O and Cu—O—Cu are 76.1 (2) and 103.9 (2)°, respectively. The Cu?Cu distance is 3.058 (1) Å. The central four‐membered ring lies on an inversion centre. 相似文献
19.
M. A. H. Khan T. K. Prasad M. V. Rajasekharan 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(6):m281-m283
2‐(2‐Aminoethyl)pyridine (2‐aep, C7H10N2) acts as a bridging ligand in bis[μ‐2‐(2‐aminoethyl)pyridine‐κ2N:N′]disilver(I) dinitrate, [Ag2(2‐aep)2](NO3)2, and bis[μ‐2‐(2‐aminoethyl)pyridine‐κ2N:N′]disilver(I) diperchlorate, [Ag2(2‐aep)2](ClO4)2. Both salts contain the dinuclear [Ag2(2‐aep)2]2+ cation, which possesses a crystallographic inversion center. The Ag⋯Ag distance is 3.1163 (5) Å for the nitrate and 3.0923 (3) Å for the perchlorate salt, and may indicate a weak d10–d10 interaction in each case. Essentially linear coordination of the AgI atom is perturbed by weak coordination to the anionic O atoms. These latter interactions organize the dinuclear cations into one‐dimensional polymeric chains in the crystals of the two salts. 相似文献
20.
Jakob
sterberg Eriksen Alan Hazell Astrid Jensen Josua Jepsen Rasmus Damgaard Poulsen 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(5):551-553
The reaction between tris(ethylenediamine)nickel(II) cations and hexacyanometallate(III) anions (M = Fe, Co) yields ordered bimetallic assemblies, catena‐poly[[tris(ethylenediamine)nickel‐bis(μ‐hexacyanoiron‐N,N′)] trihydrate] and catena‐poly[[tris(ethylenediamine)nickel‐bis(μ‐hexacyanocobalt‐N,N′)] trihydrate], [{Ni(C2H8N2)2}3{M(CN)6}2]·3H2O, in which both cis and trans [Ni(en)2] and [M(CN)6] moieties are linked to give S‐shaped Ni–NC–M–CN–Ni–NC–M–CN–Ni units which are crosslinked to give ribbons parallel to the b axis. The two compounds are isomorphous with mean metal–ligand distances Fe—C = 1.940 (3), Co—C = 1.844 (3) and Ni—N = 2.102 (2) Å for the iron, and 2.105 (3) Å for the cobalt compound. These compounds appear to be identical with those formulated as [Ni(en)2]3[M(CN)6]2·2H2O [Ohba, Maruona, Okawa, Enoki & Latour (1994). J. Am. Chem. Soc. 116 , 11566–11567; Ohba, Fukita & Okawa (1997). J. Chem. Soc. Dalton Trans. pp. 1733–1737] which were indexed on a smaller unit cell and described as disordered. 相似文献