共查询到20条相似文献,搜索用时 15 毫秒
1.
Osman Dayan Muharrem Diner Bekir etinkaya Namk
zdemir 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(7):m315-m318
In the title compound, [CuCl2(C11H15N3O2)], the CuII ion is five‐coordinated in a strongly distorted trigonal–bipyramidal arrangement, with the two methyloxime N atoms located in the apical positions, and the pyridine N and the Cl atoms located in the basal plane. The two axial Cu—N distances are almost equal (mean 2.098 Å) and are substantially longer than the equatorial Cu—N bond [1.9757 (15) Å]. It is observed that the N(oxime)—M—N(pyridine) bond angle for five‐membered chelate rings of 2,6‐diacetylpyridine dioxime complexes is inversely related to the magnitude of the M—N(pyridine) bond. The structure is stabilized by intra‐ and intermolecular C—H⋯Cl hydrogen bonds which involve the methyl H atoms, except for one of the two acetylmethyl groups. 相似文献
2.
Kateryna Gubina Vladimir Ovchynnikov Vladymir Amirkhanov Svetlana Shishkina 《Acta Crystallographica. Section C, Structural Chemistry》2013,69(6):606-609
In the title complex, [Cu(C16H16Cl3N3O2P)Cl(C12H8N2)], the CuII cation presents a square‐pyramidal environment, where the CuO2N2 base is formed by two O atoms from carbonyl and phosphoryl groups, and by two N atoms from a 1,10‐phenanthroline molecule. A coordinated Cl atom occupies the apex. N—H...Cl hydrogen bonds link the molecules into one‐dimensional chains. The trichloromethyl group is rotationally disordered over two positions, with occupancies of 0.747 (7) and 0.253 (7). 相似文献
3.
Mireille Perec Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2010,66(11):m339-m342
In the monomeric title compound, [Cu(C4H4O5)(C6H6N2O)(H2O)]·1.5H2O, the CuII cation is bound in a square‐pyramidal coordination to a tridentate oxydiacetate (ODA) ligand, a monodentate pyridine‐3‐carboxamide (p3ca) ligand and one aqua ligand, where the two organic ligands form the basal plane and the water O atom occupies the unique apical site. The ODA ligand presents a slight out‐of‐plane puckering in its central ether O atom, while the p3ca ligand is essentially planar. The availability of efficient donors and acceptors for hydrogen bonding results in the formation of strongly linked hydrogen‐bonded bilayers parallel to (101), with an interplanar distance of 3.18 (1) Å and a stacking separation between the bilayers of 3.10 (1) Å, both of them governed by extended π–π interactions. The disordered nature of the solvent water molecules around inversion centres is discussed. The monoaqua compound is compared with the octahedral diaqua analogue, [Cu(C4H4O5)(C6H6N2O)(H2O)2], reported recently [Perec & Baggio (2009). Acta Cryst. C 65 , m296–m298]. 相似文献
4.
Mireille Perec Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(8):m296-m298
In the mononuclear title compound, [Cu(C4H4O5)(C6H6N2O)(H2O)2], the CuII centre is bound to a chelating oxydiacetate ligand, a monodentate pyridine‐3‐carboxamide unit and two water molecules, defining an octahedral coordination where the first two ligands form the equatorial plane and the last two occupy the apical sites. The planar oxydiacetate ligand is slightly disordered at its central ether O atom. The availability of efficient donors and acceptors for hydrogen bonding results in a complex interaction scheme where each monomer links to six similar units to define a well connected three‐dimensional structure. A comparison is made with related structures in the literature, and the reasons for their differences are discussed. 相似文献
5.
Paul A. Maggard Amy L. Kopf Charlotte L. Stern Kenneth R. Poeppelmeier 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):m207-m209
The title compound, [Cu(Cr2O7)(C10H8N2)2], a new mixed‐metal molecular compound, contains isolated molecular units, each comprised of one CuII atom coordinated to two 2,2′‐bipyridine ligands and also to an oxygen vertex of a dichromate anion. The CuII atom has an approximate trigonal–bipyramidal geometry, which is consistent with previous studies. Both enantiomers of the chiral complex molecule are present and are related by inversion centers. In a reported pyridine analogue, achiral [Cu(Cr2O7)(pyridine)4] chains pack in the non‐centrosymmetric space group Pna21. Differences in the organic ligands influence the chirality and dimensionality of the Cu—Cr2O7 bonding. 相似文献
6.
Yanko Moreno Yimmy Salgado María Teresa Garland Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(11):m487-m489
In the title monomer, [Cu(NO3)2(C18H12N2)], the six‐coordinated CuII atom lies on a twofold axis which bisects one of the ligands (a chelating biquinoline) and duplicates the remaining ligand, a chelating nitrate. The latter binds in a very asymmetric way, consistent with a Jahn–Teller distortion in the coordination polyhedron which, due to the triple chelation, is extremely distorted and difficult to describe in terms of any regular model. 相似文献
7.
En Tang Yu‐Mei Dai Shen Lin 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(9):m433-m434
The title compound, [Zn(C8H5O4)2(C10H8N2)2], was obtained by the hydrothermal reaction of ZnSO4·7H2O with phthalic acid (H2pht) and 4,4′‐bipyridine (4,4′‐bipy). Crystallographic analysis shows that it has a one‐dimensional double‐chain structure via hydrogen‐bonding interactions. Each ZnII atom, adopting a distorted tetrahedral geometry, is coordinated by two N atoms from two 4,4′‐bipy ligands, with Zn—N distances of 2.054 (4) and 2.104 (4) Å, and by two O atoms from symmetry‐related Hpht− ligands, with Zn—O distances of 1.921 (4) and 2.019 (4) Å. 相似文献
8.
Xi‐Teng Yue Jin‐Ju Nie Yan‐Tuan Li Zhi‐Yong Wu Cui‐Wei Yan 《Acta Crystallographica. Section C, Structural Chemistry》2011,67(4):m115-m118
The title complex, [CuNi(C13H16N3O3)(C10H8N2)2(H2O)]ClO4, has a cis‐oxamide‐bridged heterobinuclear cation, with a Cu...Ni separation of 5.3297 (6) Å, counterbalanced by a disordered perchlorate anion. The CuII and NiII cations are located in square‐pyramidal and octahedral coordination environments, respectively. The complex molecules are assembled into a three‐dimensional supramolecular structure through hydrogen bonds and π–π stacking interactions. The influence of the two types of metal cation on the supramolecular structure is discussed. 相似文献
9.
Takashiro Akitsu Yasuaki Einaga 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(4):m162-m164
The title compound, [Cu(C4H12N2)2(C3H6O)2](ClO4)2, is the first structurally characterized CuII complex having acetone as axial ligands. The complex adopts an elongated octahedral trans‐[CuN4O2] coordination geometry, with the Cu atom having 222 site symmetry. The axial Cu—O(acetone) and in‐plane Cu—N bond lengths are 2.507 (5) and 2.041 (3) Å, respectively. 相似文献
10.
Muharrem Diner Osman Dayan Bekir etinkaya Namk
zdemir 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(9):m398-m400
In the title compound, [CoCl2(C11H15N3O2)], the CoII ion is five‐coordinated in a strongly distorted square‐pyramidal arrangement, with one of the two Cl atoms located in the apical position, and the other Cl atom and the three N‐donor atoms of the tridentate methyloxime ligand located in the basal plane. The non‐H atoms, except for the Cl atoms, lie on a mirror plane. The two equatorial Co—Noxime distances are almost equal (mean 2.253 Å) and are substantially longer than the equatorial Co—Npyridine bond [2.0390 (19) Å]. The structure is stabilized by intra‐ and intermolecular C—H⋯Cl contacts, which involve one of the methyl C atoms belonging to the methyloxime groups. 相似文献
11.
Wei Sun Yan‐Tuan Li Zhi‐Yong Wu Ning‐Yu Xiao 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(3):m111-m113
In the crystal structure of the title complex, [Ni2(C10H20N4O2)(C12H12N2)2](ClO4)2 or [Ni(dmaeoxd)Ni(dmbp)2](ClO4)2 {H2dmaeoxd is N,N′‐bis[2‐(dimethylamino)ethyl]oxamide and dmbp is 4,4′‐dimethyl‐2,2′‐bipyridine}, the deprotonated dmaeoxd2− ligand is in a cis conformation and bridges two NiII atoms, one of which is located in a slightly distorted square‐planar environment, while the other is in an irregular octahedral environment. The cation is located on a twofold symmetry axis running through both Ni atoms. The dmaeoxd2− ligands interact with each other via C—H⋯O hydrogen bonds and π–π interactions, which results in an extended chain along the c axis. 相似文献
12.
Wei Sun Yan‐Tuan Li Zhi‐Yong Wu Shu‐Fang Zhang Zhi‐Wei Yin 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(3):m108-m110
In the crystal structure of the title complex, [Cu2(C10H20N4O2)(C10H8N2)2](ClO4)2, the deprotonated dmaeoxd2− ligand {H2dmaeoxd is N,N′‐bis[2‐(dimethylamino)ethyl]oxamide} occupies an inversion centre at the mid‐point of the central C—C bond and is thus in a trans conformation. The two CuII atoms are located in slightly distorted square‐based pyramidal environments. The binuclear units interact with each other viaπ–π interactions to form a one‐dimensional chain extending in the c direction. 相似文献
13.
Marijana estan Gerald Giester Berislav Peri 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m595-m597
The synthesis and crystal structure of the mononuclear title compound, [Co(C2O4)(C10H8N2)2]·5H2O, is reported. The Co atom is six‐coordinated by two O atoms of a bidentate oxalate group and by four N atoms of two bipyridine ligands. The neutral [Co(C2O4)(C10H8N2)2] entities are connected by π–π stacking interactions of the aromatic systems into a two‐dimensional layer, interconnected through a ladder‐like hydrogen‐bonding pattern of solvate water molecules. 相似文献
14.
Xia Chen Hong‐Feng Chen Gang Xue Hong‐Yu Chen Wen‐Tao Yu Qi Fang 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(4):m166-m168
The title complexes, [M(C5O5)(C12H8N2)2], with M = CoII, NiII and CuII, all lie across twofold rotation axes, around which two 1,10‐phenanthroline ligands are arranged in a chiral propeller manner. The CoII and NiII complexes are isostructural, with octahedral coordination geometry, while the local geometry of the CuII complex is severely distorted from octahedral. 相似文献
15.
Thidarat Chotkhun Sujittra Youngme Narongsak Chaichit 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(2):m59-m61
In the title dinuclear acetate‐bridged complex, [Cu2(C2H3O2)3(NCS)(C10H9N3)2], the two Cu atoms are five‐coordinated, with a basal plane consisting of two N atoms of a di‐2‐pyridylamine (dpyam) ligand and two O atoms of two different acetate ligands. The axial positions of these Cu atoms are coordinated to N and O atoms from thiocyanate and acetate molecules, respectively, leading to a distorted square‐pyramidal geometry with τ values of 0.30 and 0.22. Both CuII ions are linked by an acetate group in the equatorial–equatorial positions and have syn–anti bridging configurations. Hydrogen‐bond interactions between the amine H atom and the coordinated and uncoordinated O atoms of the acetate anions generate an infinite one‐dimensional chain. 相似文献
16.
Kanidtha Hansongnern Uraiwan Saeteaw Jack Cheng Fen‐Ling Liao Tian‐Huey Lu 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(8):895-896
The Ru—N bond distances in the title complex, [Ru(NO2)(C11H9N3)(C15H11N3)]BF4 or [Ru(NO2)(tpy)(azpy)]BF4, [tpy is 2,2′:6′,2′′‐terpyridine and azpy is 2‐(phenylazo)pyridine], are Ru—Npy 2.063 (4), Ru—Nazo 2.036 (4), Ru—Nnitro 2.066 (3) Å, and Ru—Ntpy 2.082 (4), 1.982 (3) and 2.074 (4) Å. The azo N atom is trans to the nitro group. The azo N=N bond length is 1.265 (5) Å, which is the shortest found in such complexes to date. This indicates a multiple bond between Ru and the N atom of the nitro group, and π‐backbonding [dπ(Ru) π*(azo)] is decreased. 相似文献
17.
Xin‐Yi Cao Jian Zhang Yao Kang Jian‐Kai Cheng Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(12):m654-m656
In the title compound, [Cu(C8H4O5)(C5H5N)2]n or [Cu(OH‐BDC)(py)2]n (where OH‐H2BDC is 5‐hydroxyisophthalic acid and py is pyridine), the Cu atoms are coordinated by two N atoms from the pyridine ligands and by three O atoms from hydroxyisophthalate ligands in a highly distorted triangular bipyramidal environment, with Cu—O distances in the range 1.941 (4)–2.225 (5) Å and Cu—N distances of 2.014 (6) and 2.046 (6) Å. The [Cu(OH‐BDC)]n two‐dimensional network is built up from interlocking 22‐, 15‐ and eight‐membered rings via sharing of Cu atoms and O—H⋯O hydrogen bonds. Consolidation of the packing structure is achieved by edge‐ or point‐to‐face C—H⋯π interactions and offset or slipped π–π stacking interactions. 相似文献
18.
Guang‐Fei Liu Lin‐Lin Li Yong Zhang Jian‐Ping Lang Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(1):m1-m3
The title compound, [Cu(ClO4)2(C4H9N3O2)2][Cu(C4H9N3O2)2(CH4O)2](ClO4)2·2CH3OH, comprises two independent CuII species lying on different inversion sites. In the Cu complexes, a distorted octahedral geometry arises (from basic square‐planar N4 coordination) from the weak coordination of two perchlorate ions (as Cu—O) in one species and two methanol molecules in the other (also as Cu—O). Interactions between the O atoms of the perchlorate anions or methanol groups and the imide or amine NH groups afford an extensive intermolecular hydrogen‐bonding network. 相似文献
19.
Hümeyra Paaolu Ahmet Karada Fatma Tezcan Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(2):m93-m94
In the novel transition metal isothiocyanate complex of N‐(2‐hydroxyethyl)ethylenediamine (hydet‐en) with copper, [Cu(NCS)2(C4H12N2O)], the Cu atom lies in a distorted square‐pyramidal environment, coordinated by four N atoms in the basal plane and an apical O atom. The hydet‐en ligand is N,N,O‐tridentate, in contrast to the disposition in previously studied complexes, while the isothiocyanate ions act as N‐atom donor ligands. The monomeric units are linked to one another by hydrogen bonds. 相似文献
20.
Pascale Lemoine Karima Bendada Bernard Viossat 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m489-m491
The asymmetric unit of the title compound, [Zn(C7H5O3)2(C10H8N2)], contains one monomeric zinc complex. The Zn atom is coordinated to one 2,2′‐bipyridyl ligand via both N atoms and to two salicylate anions (Hsal−) in a bidentate chelating manner involving carboxylate O‐atom coordination. The complex exhibits a distorted octahedral geometry about the ZnII atom, with the `apical' positions occupied by one of the two N atoms of the bipyridyl ligand and an O atom from one Hsal− ligand; the Zn atom is 0.168 (1) Å out of the `basal' plane. Two intramolecular six‐membered hydrogen‐bonded rings are present, generated from interactions between the carboxyl and hydroxyl groups of the salicylate ligands. The crystal packing is governed by weak C—H⋯O and C—H⋯π interactions. 相似文献