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1.
Fangfang Jian Ying Wang Lude Lu Xujie Yang Xin Wang Suchada Chantrapromma Hoong‐Kun Fun Ibrahim Abdul Razak 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(6):714-716
The crystal structures of tris(2‐methylquinolin‐8‐olato‐N,O)iron(III), [Fe(C10H8NO)3], (I), and aquabis(2‐methylquinolin‐8‐olato‐N,O)copper(II), [Cu(C10H8NO)2(H2O)], (II), have been determined. Compound (I) has a distorted octahedral configuration, in which the central Fe atom is coordinated by three N atoms and three O atoms from three 2‐methylquinolin‐8‐olate ligands. The three Fe—O bond distances are in the range 1.934 (2)–1.947 (2) Å, while the three Fe—N bond distances range from 2.204 (2) to 2.405 (2) Å. In compound (II), the central CuII atom and H2O group lie on the crystallographic twofold axis and the coordination geometry of the CuII atom is close to trigonal bipyramidal, with the three O atoms in the basal plane and the two N atoms in apical positions. The Cu—N bond length is 2.018 (5) Å. The Cu—O bond length in the basal positions is 1.991 (4) Å, while the Cu—O bond length in the apical position is 2.273 (6) Å. There is an intermolecular OW—H?O hydrogen bond which links the molecules into a linear chain along the b axis. 相似文献
2.
Kaori Yamada Takashi Kawamura Masahiro Ebihara 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(9):m451-m454
The dirhodium complex bis(benzonitrile)tetrakis[μ‐4‐(diethylamino)benzoato‐κ2O:O′]dirhodium(II)(Rh—Rh) benzonitrile disolvate, [Rh2(C11H14NO2)4(C7H5N)2]·2C7H5N, lies about an inversion centre. The dirhodium complex (methanol)tetrakis(μ‐4‐nitrobenzoato‐κ2O:O′)(pyridine)dirhodium(II)(Rh—Rh) dichloromethane solvate, [Rh2(C7H4NO4)4(C5H5N)(CH4O)]·CH2Cl2, lies in a general position in the unit cell, but the complexes dimerize around an inversion centre via O—H⋯O hydrogen bonding of the axial MeOH to a carboxylate O atom. In the latter crystal structure, π–π stacking interactions between the bridging 4‐nitrobenzoate ligands and the axial pyridine ligand are observed between adjacent molecules. 相似文献
3.
Yasunori Muranishi Nobuo Okabe 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(12):m578-m580
trans‐Diaquabis(isoquinoline‐1‐carboxylato‐κ2N,O)cobalt(II) dihydrate, [Co(C10H6NO2)2(H2O)2]·2H2O, and trans‐diaquabis(isoquinoline‐1‐carboxylato‐κ2N,O)nickel(II) dihydrate, [Ni(C10H6NO2)2(H2O)2]·2H2O, contain the same isoquinoline ligand, with both metal atoms residing on a centre of symmetry and having the same distorted octahedral coordination. In the former complex, the Co—O(water) bond length in the axial direction is 2.167 (2) Å, which is longer than the Co—O(carboxylate) and Co—N bond lengths in the equatorial plane [2.055 (2) and 2.096 (2) Å, respectively]. In the latter complex, the corresponding bond lengths for Ni—O(water), Ni—O(carboxylate) and Ni—N are 2.127 (2), 2.036 (2) and 2.039 (3) Å, respectively. Both crystals are stabilized by similar stacking interactions of the ligand, and also by hydrogen bonds between the hydrate and coordinated water molecules. 相似文献
4.
Yoshio Wada Nobuo Okabe Yasunori Muranishi 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(10):m511-m513
In trans‐bis(5‐n‐butylpyridine‐2‐carboxylato‐κ2N,O)bis(methanol‐κO)copper(II), [Cu(C10H12NO2)2(CH4O)2], the Cu atom lies on a centre of symmetry and has a distorted octahedral coordination. The Cu—O(methanol) bond length in the axial direction is 2.596 (3) Å, which is much longer than the Cu—O(carboxylate) and Cu—N distances in the equatorial plane [1.952 (2) and 1.977 (2) Å, respectively]. In mer‐tris(5‐n‐butylpyridine‐2‐carboxylato‐κ2N,O)iron(III), [Fe(C10H12NO2)3], the Fe atom also has a distorted octahedral geometry, with Fe—O and Fe—N bond‐length ranges of 1.949 (4)–1.970 (4) and 2.116 (5)–2.161 (5) Å, respectively. Both crystals are stabilized by stacking interactions of the 5‐n‐butylpyridine‐2‐carboxylate ligand, although hydrogen bonds also contribute to the stabilization of the copper(II) complex. 相似文献
5.
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
6.
Keri T. Horne Gregory L. Powell Lee M. Daniels 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(5):m302-m303
The title complex [systematic name: pentachloro‐1κ3Cl,2κ2Cl‐tris(diethylphenylphosphino)‐1κP,2κ2P‐dirhenium(II,III)(Re—Re)], 1,3,6‐Re2Cl5(PEt2Ph)3 or [Re2Cl5(C10H15P)3], consists of dirhenium molecules with eclipsed structures similar to those of previously characterized 1,3,6‐Re2Cl5(PR3)3 compounds. The Re—Re bond distance is 2.2262 (3) Å and the metal–metal bond order is 3.5. 相似文献
7.
Won Seok Han Soon W. Lee 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(4):m189-m190
In the title compound, azido‐2κN‐bis[μ‐(1η5:2κP)‐diphenylphosphinocyclopentadienyl][2(η5)‐pentamethylcyclopentadienyl]iron(III)rhodium(III) hexafluorophosphate, [{Rh(C10H15)(N3)}{Fe(μ‐C17H14P)2}]PF6 or [FeRh(C10H15)(μ‐C17H14P)2(N3)]PF6, the coordination sphere of RhIII can be described as pseudo‐tetrahedral, composed of two P atoms from a 1,1′‐bis(diphenylphosphino)ferrocene (dppf) ligand, an azido N atom and the centroid of the ring of a C5Me5 (Cp*) ligand. The two cyclopentadienyl rings in the dppf moiety adopt an eclipsed conformation. The Rh⋯Fe distance is 4.340 (2) Å. 相似文献
8.
Banglin Chen Frank R. Fronczek Andrew W. Maverick 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(4):m147-m149
The β‐diketone 3‐(4‐cyanophenyl)pentane‐2,4‐dione crystallizes as the enol tautomer 4‐(2‐hydroxy‐4‐oxopent‐2‐en‐3‐yl)benzonitrile, C12H11NO2, (I), with an intramolecular O—H⋯O hydrogen bond [O⋯O = 2.456 (2) Å]. Reaction of (I) with copper acetate monohydrate in the presence of triethylamine leads to the formation of the copper(II) complexbis[3‐(4‐cyanophenyl)pentane‐2,4‐dionato‐κ2O,O]copper(II), [Cu(C12H10NO2)2], (II). In the structure of (II), the Cu atom is coordinated by four β‐diketonate O atoms in a slightly distorted square‐planar geometry, with Cu—O distances in the range 1.8946 (11)–1.9092 (11) Å. The nitrile moieties in (II) make it a candidate for reaction with other metal ions to produce supramolecular structures. 相似文献
9.
Maria Ana Castro Zulema D. Chaia Oscar E. Piro Fabio D. Cukiernik Eduardo E. Castellano Marcia Rusjan 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(7):m393-m395
The title compound, tetrakis(μ‐3,4,5‐triethoxybenzoato‐κ2O:O′)bis[(pyrazine‐κN)rhodium(II)](Rh—Rh), [Rh2(C13H17O5)4(C4H4N2)2], crystallizes on an inversion centre in the triclinic space group . The equatorial carboxylate ligands bridge the two RhII atoms, giving a binuclear lantern‐like structure. The pyrazine molecules occupy the two axial coordination sites. The phenyl rings are tilted by ca 10° with respect to the attached carboxylate groups. The pyrazine planes have a torsion angle of ca 19° around the Rh—N bond with respect to the plane of the nearer carboxylate group and are not coplanar with the Rh—Rh bond. 相似文献
10.
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
11.
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
12.
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
13.
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
14.
Choudhury M. Zakaria George Ferguson Alan J. Lough Christopher Glidewell 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):o204-o208
The adduct 1,6‐diaminohexane–1,1,1‐tris(4‐hydroxyphenyl)ethane (1/2) is a salt {hexane‐1,6‐diyldiammonium–4‐[1,1‐bis(4‐hydroxyphenyl)ethyl]phenolate (1/2)}, C6H18N22+·2C20H17O3?, in which the cation lies across a centre of inversion in space group P. The anions are linked by two short O—H?O hydrogen bonds [H?O 1.74 and 1.76 Å, O?O 2.5702 (12) and 2.5855 (12) Å, and O—H?O 168 and 169°] into a chain containing two types of R(24) ring. Each cation is linked to four different anion chains by three N—H?O hydrogen bonds [H?O 1.76–2.06 Å, N?O 2.6749 (14)–2.9159 (14) Å and N—H?O 156–172°]. In the adduct 2,2′‐bipyridyl–1,1,1‐tris(4‐hydroxyphenyl)ethane (1/2), C10H8N2·2C20H18O3, the neutral diamine lies across a centre of inversion in space group P21/n. The tris(phenol) molecules are linked by two O—H?O hydrogen bonds [H?O both 1.90 Å, O?O 2.7303 (14) and 2.7415 (15) Å, and O—H?O 173 and 176°] into sheets built from R(38) rings. Pairs of tris(phenol) sheets are linked via the diamine by means of a single O—H?N hydrogen bond [H?N 1.97 Å, O?N 2.7833 (16) Å and O—H?N 163°]. 相似文献
15.
Hidetaka Yuge Takeshi Ken Miyamoto Tomofumi Kikuchi Yukihiro Iwasaki 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):m594-m596
In the first bis[ruthenium(II)–porphyrin]–dicarbene complex, μ‐[1,4‐phenylenebis(phenylmethylidene‐κC)]bis[(ethanol‐κO)(5,10,15,20‐tetra‐p‐tolylporphyrinato‐κ4N)ruthenium(II)] 1,2‐dichloroethane trisolvate, [Ru2(C20H14)(C48H36N4)2(C2H6O)2]·3C2H4Cl2, an inversion center is located at the center of the μ‐phenylene group, leading to a parallel arrangement for the pair of porphyrin ring systems. The bond lengths and angles compare favourably with literature values for ruthenium–porphyrin–monocarbene complexes; the Ru=C(carbene) bond length and the C(phenyl)—C(carbene)—C(phenylene) angle are 1.865 (3) Å and 112.3 (3)°, respectively. The RuII ion is displaced out of the C20N4 porphyrin least‐squares plane (by 0.2373 Å) toward the bridging ligand of the Ci‐symmetry dimer. The porphyrin ring systems of the dimer thus exhibit mildly domed conformations. 相似文献
16.
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
17.
Liliana V. Lukashuk Andrey B. Lysenko Eduard B. Rusanov Alexander N. Chernega Konstantin V. Domasevitch 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(4):m140-m143
In the isostructural title complexes, [M(C9H6N3O2)2(H2O)2] [M = CoII, (I), CdII, (II), and CuII, (III); the metal centres reside on a twofold axis in the space group C2/c for (I) and (II)], the metal centres are surrounded by four O atoms from two O,O′‐bidentate carboxylate groups and by two trans‐coordinated aqua ligands, forming a distorted octahedral environment. The molecules possess four hydrogen‐bond donor (two aqua ligands) and four hydrogen‐bond acceptor sites (two triazole groups), and aggregate by self‐association, forming two‐dimensional hydrogen‐bonded frameworks [via O—H⋯N interactions; O⋯N = 2.749 (3)–2.872 (3) Å]. The layers are parallel and are tightly packed with short interlayer distances of 4.93, 4.95 and 5.01 Å for (I), (II) and (III), respectively. 相似文献
18.
Jonathan Bould Annette Brownless Colin A. Kilner Michael G. S. Londesborough Bohumil Štíbr John D. Kennedy Mark Thornton-Pett 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(1):52-54
The title compound, μ-6,9-chloro-8-methoxy-6,9-bis(η5-pentamethylcyclopentadienyl)-6,9-dirhoda-5-thia-arachno-decaborane(7), [Rh2(CH10B7OS)(C10H15)2Cl], has a single Cl atom bridging the two remote rhodium `prow' vertices of an arachno ten-vertex dirhodathiadecaborane cluster, with Rh—Cl distances of 2.3475 (11) and 2.3536 (11) Å, and an Rh—Cl—Rh angle of 106.82 (4)°. 相似文献
19.
Matthias W. Esterhuysen Helgard G. Raubenheimer 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(7):m286-m288
The title compound, tetracarbonyl‐1κ4C‐tris(triphenylphosphino)‐1κP,2κP,3κP‐triangulo‐chromiumdigold(Au—Au)(2 Cr—Au) tetrahydrofuran solvate, [Au2Cr(C18H15P)3(CO)4]·C4H8O, is a stable isolobal analogue of the extremely labile [(η2‐H2)CrLn–1] molecular hydrogen complex (n = 6; L is a neutral ligand, e.g. CO or PPh3), and features the shortest known separation [2.6937 (2) Å] between two Au atoms in a triangular heteronuclear metal‐cluster framework. 相似文献
20.
Tim Kemmitt Graeme J. Gainsford Najeh I. Al‐Salim 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(2):m42-m43
The title compound, octa‐tert‐butoxybis[μ3‐2,2′‐(N‐methylimino)diethanolato]di‐μ‐oxo‐tetratitanium(IV), [Ti2O{(OCH2CH2)2(NCH3)}{(CH3)3CO}4]2 or [Ti4(C5H11NO2)2(C4H9O)8O2], lies about an inversion centre, and displays the less usual zigzag configuration. One O atom of the N‐methyldiethoxoamine ligand bridges the symmetry‐related Ti atoms, while the other bridges the two independent Ti atoms, with the N atom binding to give a facial configuration. Four tBuO− ligands and a bridging oxide complete the respective five‐ and sixfold coordination of the two Ti atoms. The Ti—O bond lengths range in a self‐consistent fashion from 1.7624 (17) to 2.0878 (18) Å, while the Ti—N bond length is 2.374 (2) Å. 相似文献