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1.
Juraj Kuchr Juraj ernk Werner Massa 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(8):m418-m420
The title compound, bis[diaquabis(ethylenediamine‐κ2N,N′)copper(II)] hexacyanoiron(II) tetrahydrate, [Cu(C2H8N2)2(H2O)1.935]2[Fe(CN)6]·4H2O, was crystallized from an aqueous reaction mixture initially containing CuSO4, K3[Fe(CN)6] and ethylenediamine (en) in a 3:2:6 molar ratio. Its structure is ionic and is built up of two crystallographically different cations, viz. [Cu(en)2(H2O)2]2+ and [Cu(en)2(H2O)1.87]2+, there being a deficiency of aqua ligands in the latter, [Fe(CN)6]4− anions and disordered solvent water molecules. All the metal atoms lie on centres of inversion. The Cu atom is octahedrally coordinated by two chelate‐bonded en molecules [mean Cu—N = 2.016 (2) Å] in the equatorial plane, and by axial aqua ligands, showing very long distances due to the Jahn–Teller effect [mean Cu—O = 2.611 (2) Å]. In one of the cations, significant underoccupation of the O‐atom site is observed, correlated with the appearance of a non‐coordinated water molecule. This is interpreted as the partial contribution of a hydrate isomer. The [Fe(CN)6]4− anions form quite regular octahedra, with a mean Fe—C distance of 1.913 (2) Å. The dominant intermolecular interactions are cation–anion O—H⋯N hydrogen bonds and these interactions form layers parallel to (001). 相似文献
2.
ubica Tri
íkov Ivan Poto
k Christoph Wagner 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):m246-m248
The structure of the title compound, [Cu(C6H7N)2{Ag(CN)2}2]n, is made up of neutral zigzag chains of [–NC–Ag–CN–Cu(4‐Mepy)2{Ag(CN)2}–NC–Ag–CN–] (4‐Mepy is 4‐methylpyridine). Neighbouring chains are linked by weak argentophilic interactions, with Ag?Ag distances of 3.2322 (12) Å. The Cu atom, which lies on a twofold rotation axis, is pentacoordinated by one monodentate Ag(CN)2? anion [Cu—N 1.985 (3) Å], the atoms of which lie on the same rotation axis, and by bridging dicyanoargentate anions [2 × Cu—N 2.0827 (19) Å], with Ag atoms on inversion centres. The coordination polyhedron is completed by two 4‐Mepy molecules [2 × Cu—N 2.038 (2) Å], which occupy the axial positions of a distorted trigonal bipyramid. 相似文献
3.
Juraj ernk Khalil A. Abboud 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(3):m167-m170
Partial reduction of the CuII ions in the aqueous system CuII–en–[Ni(CN)4]2? (1/1/1) (en is 1,2‐diaminoethane) yields a novel heterobimetallic mixed‐valence compound, poly[[aquabis(1,2‐diaminoethane)copper(II)] [hexa‐μ‐cyano‐tetracyanobis(1,2‐diaminoethane)tricopper(I,II)dinickel(II)] dihydrate], [Cu(C2H8N2)2(H2O)][Ni2Cu3(CN)10(C2H8N2)2]·2H2O or [Cu(en)2(H2O)][Cu(en)2Ni2Cu2(CN)10]·2H2O. The structure is formed by a negatively charged two‐dimensional array of the cyano complex [Cu(en)2Ni2Cu2(CN)10]n2n?, [Cu(en)2(H2O)]2+ complex cations and water molecules of crystallization. These last are involved in a complicated hydrogen‐bonding system. The cyano groups act as terminal, μ2‐bridging or μ3‐bridging ligands. 相似文献
4.
Xi‐Rui Zeng Xiao‐Niu Fang Shie‐Ming Peng Hsiu‐Mei Lin 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(11):m497-m498
The crystal structure of the title compound, [Cu2(C2F3O2)2(C10H8N3O)2]·2CH3CN, contains discrete [Cu2(CF3COO)2(O‐dpa)2] molecules (O‐dpaH is di‐2‐pyridylamine 1‐oxide) which have imposed crystallographic twofold symmetry and an acetonitrile molecule of solvation. The O‐dpa− ligand is both bidentate and bridging, linking two Cu atoms with a separation of 3.4270 (11) Å. Each Cu atom is surrounded by four coordinated atoms that are almost coplanar, with dimensions Cu—N = 1.940 (2) and 1.984 (3) Å, and Cu—O = 1.912 (2) and 1.945 (2) Å. 相似文献
5.
Miroslava Maarov Juraj Kuchr Juraj ernk Werner Massa 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(7):m280-m282
The title compound, tetraethylammonium dodeca‐μ‐cyano‐hexacyanotetrakis(ethylenediamine)tetracadmium(II)triferrate(III), (C8H20N)[Cd4Fe3(CN)18(C2H8N2)4], was prepared from a reaction mixture containing CdCl2, K3[Fe(CN)6], ethylenediamine (en) and [Et4N]Br in a 1:1:3:1 molar ratio. The crystal structure consists of a negatively charged three‐dimensional framework of {[Cd(en)]4[Fe(CN)6]3} anions, with [Et4N]+ cations located in the cavities of the framework. The Cd atom is octahedrally coordinated by one disordered chelating en molecule [mean Cd—N = 2.35 (3) Å] and four N‐bonded bridging cyano groups [Cd—N distances are in the range 2.283 (2)–2.441 (2) Å]. There are two crystallographically independent [Fe(CN)6]3− anions in the structure and in each the Fe atom lies on a twofold axis. In the first [mean Fe—C = 1.941 (5) Å], all the cyano groups are bridging ligands, while in the second [mean Fe—C = 1.945 (2) Å], there are two terminal cyano ligands in trans positions. The Cd—N—C angles range from 128.6 (2) to 172.8 (2)°. 相似文献
6.
Alexander V. Pestov Eugenia V. Peresypkina Alexander V. Virovets Nina V. Podberezskaya Yury G. Yatluk Yury A. Skorik 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(12):m510-m512
The CuII ion in the title complex, [Cu(C5H10NO3)2] or [Cu(He‐ala)2] [He‐ala = N‐(2‐hydroxyethyl)‐β‐alaninate], resides at the inversion centre of a square bipyramid comprised of two facially arranged tridentate He‐ala ligands. Each He‐ala ligand binds to a CuII ion by forming one six‐membered β‐alaninate chelate ring in a twist conformation and one five‐membered ethanolamine ring in an envelope conformation, with Cu—N = 2.017 (2) Å, Cu—OCOO = 1.968 (1) Å and Cu—OOH = 2.473 (2) Å. The [Cu(He‐ala)2] molecules are involved in a network of O—H⋯O and N—H⋯O hydrogen bonds, forming layers parallel to the (10) plane. The layers are connected into a three‐dimensional structure by van der Waals interactions, so that the molecular centres form pseudo‐face‐centered close packing. 相似文献
7.
James Chapman Nigel L. Pickett Gabriel Kolawole Majid Motevalli Paul O'Brien 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(11):e501-e502
The title copper complex, [Cu(dl ‐DAP)2(H2O)2]·2H2O or [Cu(C3H7N2O2)2(H2O)2]·2H2O, prepared from the non‐protein amino acid dl ‐2,3‐diaminopropionic acid (dl ‐HDAP), has a center of symmetry and a distorted octahedral coordination, with four N atoms in equatorial positions and two water molecules in apical sites. The water molecule of crystallization is hydrogen bonded to the deprotonated carboxylate group of the ligand. 相似文献
8.
Bing‐Xin Liu Duan‐Jun Xu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(3):m137-m139
Crystals of the title compound, [Cr(C4H5NO4)(C6H6N4S2)(H2O)]Cl·H2O, consist of CrIII complex cations, Cl− counter‐ions and lattice water molecules. The complex cation assumes an octahedral coordination geometry, formed by a tridentate iminodiacetate dianion (IDA), a diaminobithiazole (DABT) molecule and a water molecule. The planar DABT group chelates the CrIII ion with normal Cr—N distances [2.0574 (17) and 2.0598 (17) Å], but the DABT molecule is inclined to the coordination plane by a dihedral angle of 17.23 (7)°. In the monodentate carboxylate groups of the IDA ion, the coordinated C—O bonds [1.288 (3) and 1.284 (3) Å] are much longer than the uncoordinated C—O bonds [1.222 (3) and 1.225 (3) Å]. 相似文献
9.
Ken Sakai Yuichi Uchida Takashi Kajiwara Tasuku Ito 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(2):m65-m68
In the title compound, [RuII(C10H8N2)3]2[FeIII(CN)6]Cl·8H2O, the [Ru(bpy)3]2+ (bpy is 2,2′‐bipyridine) cations and water molecules afford intriguing microporous honeycomb layers, while the [Fe(CN)6]3− anions and the remainder of the water molecules form anionic sheets based on extensive hydrogen‐bonding networks. The cationic and anionic layers alternate along the c axis. The Fe atom in [Fe(CN)6]3− lies on an inversion centre and the axial cyano ligands are hydrogen bonded to the water molecules encapsulated within the micropores [N⋯O = 2.788 (5) Å], giving an unusual interpenetration between the cationic and anionic layers. On the other hand, the in‐plane cyano ligands are relatively weakly hydrogen bonded to the water molecules [N⋯O = 2.855 (7) and 2.881 (8) Å] within the anionic sheets. 相似文献
10.
Jos S. Casas Emilia García‐Martínez María Soledad García‐Tasende Agustín Snchez Jos Sordo Ezequiel M. Vzquez‐Lpez María Jos Vidarte 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(8):932-933
The title compound, [SnCl2(CH3)(C6H5)(C5H8N2)2], was obtained by reaction of dichloromethylphenyltin(IV) and 3,5‐dimethylpyrazole (dmpz) in chloroform, and was recrystallized from acetone. The structure consists of octahedral all‐trans [SnMePhCl2(dmpz)2] molecules, with the Sn atom coordinated to two C [Sn—C 2.127 (5) and 2.135 (4) Å], two Cl [Sn—Cl 2.5753 (8) Å] and two N atoms [Sn—N 2.357 (3) Å]. The dmpz ligands, bound to the metal through their unprotonated N atoms, form weak intra‐ and intermolecular hydrogen bonds with the Cl ligands via their NH groups, giving rise to a polymeric chain along the c axis. 相似文献
11.
Juraj ernk Jozef Chomi
Werner Massa 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(10):m490-m493
From the 1:1 system of [Cu(dien)2](NO3)2 and K[Ag(CN)2] in water (dien is diethylenetriamine, C4H13N3), the novel compound catena‐poly[bis[[μ‐cyano‐1:2κ2C:N‐diethylenetriamine‐2κ3N‐copper(II)silver(I)]‐μ‐cyano‐1:2′κ2C:N] dicyanosilver(I) tricyanodisilver(I)], [CuAg(CN)2(dien)]2[Ag(CN)2][Ag2(CN)3], has been isolated. The structure is formed from positively charged [–Cu(dien)–NC–Ag–CN–]nn+ chains and two isolated centrosymmetric [Ag(CN)2]? and [Ag2(CN)3]? anions. In the cationic chains, the Cu atoms are linked by bridging dicyanoargentate groups, and the deformed square‐pyramidal coordination polyhedron of the CuII cation is formed from a tridentate chelate‐like bonded dien ligand and two N‐bonded bridging cyano groups. One of the bridging cyano groups occupies the apical (ap) position [mean Cu—Neq = 2.02 (2) Å, and Cu—Nap = 2.170 (3) Å; eq is equatorial]. Short argentophilic interactions in the range 3.16–3.30 Å are present in the crystal structure. 相似文献
12.
Chengbing Ma Feng Chen Changneng Chen Qiutian Liu 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(12):m516-m518
In the title compound, [Mn(C5H3N2O4)2(H2O)2], the MnII atom lies on an inversion centre, is trans‐coordinated by two N,O‐bidentate 1H‐imidazole‐4,5‐dicarboxylate monoanionic ligands [Mn—O = 2.202 (3) Å and Mn—N = 2.201 (4) Å] and two water molecules [Mn—O = 2.197 (4) Å], and exhibits a distorted octahedral geometry, with adjacent cis angles of 76.45 (13), 86.09 (13) and 89.20 (13)°. The complete solid‐state structure can be described as a three‐dimensional supramolecular framework, stabilized by extensive hydrogen‐bonding interactions involving the coordinated water molecules, the carboxy O atoms and the protonated imidazole N atoms of the imidazole‐4,5‐dicarboxylate ligands. 相似文献
13.
Dong‐Feng Li Taka‐aki Okamura Wei‐Yin Sun Norikazu Ueyama Wen‐Xia Tang 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(5):m280-m282
The asymmetric unit of the three‐dimensional CuII–WIV polymeric assembly {[Cu(en)2][Cu(en)][W(CN)8]·4H2O}n (en is ethylenediamine, C2H8N2) or {[Cu2W(CN)8(C2H8N2)3]·4H2O}n, which can be named as polymeric bis(ethylenediamine)copper(II) (ethylenediamine)copper(II) octacyanotungstate(IV) tetrahydrate or penta‐μ‐cyano‐tricyanotris(ethylenediamine)dicopper(II)tungsten(IV) tetrahydrate, consists of two half [Cu(en)2]2+ cations (Cu2+ on inversion centres), a [Cu(en)]2+ cation and a [W(CN)8]4? ion, together with four water molecules. The latter CuII site is coordinated by five N atoms from an en ligand and by three cyanides in a distorted square‐pyramidal geometry. The CuII atoms of the two [Cu(en)2]2+ cations reside in an elongated octahedral coordination environment, and one of them is localized at a centre of inversion. The W atom is coordinated by eight cyano groups in an irregular square antiprism. Five of these act as bridging units connecting the W and the three Cu atoms, to form an infinite three‐dimensional porous network containing a zigzag ladder structure. 相似文献
14.
Cara L. Nygren M. E. T. Bragg John F. C. Turner 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(1):m4-m6
In the title compound, [ZrCl2(C14H12N)2(C4H8O)2]·1.5C6H6, the Zr atom is pseudo‐octahedral, with two Cl atoms in trans positions and two tetrahydrofuran molecules in cis positions. The two 3,6‐dimethylcarbazolyl ligands are in cis positions and are canted with respect to one another. The two Zr—N distances are 2.1148 (18) and 2.1236 (18) Å, and the N—Zr—N angle is 95.08 (7)°. The title compound crystallizes as the benzene solvate, with one of the benzene molecules positioned on an inversion center. 相似文献
15.
Liang Shen Yi‐Jian Zhang Guo‐Ding Sheng Hua‐Tong Wang 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(7):m382-m384
The title binuclear complex, [CuFe(CN)5(C8H21N5O2)(NO)]·2H2O or [CuFe(nelin)(CN)5(NO)]·2H2O (nelin is 5‐methyl‐5‐nitro‐3,7‐diazanonane‐1,9‐diamine) consists of discrete binuclear mixed‐metal species, with a Cu centre linked to an Fe centre through a cyano bridge, and two water molecules of crystallization. In the complex, the CuII ion is coordinated by five N atoms and has a distorted square‐pyramidal geometry. The FeII centre is in a distorted octahedral environment. 相似文献
16.
Srinivasulu Aitipamula Ashwini Nangia Ram Thaimattam Mariusz Jasklski 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(8):o481-o484
In tris(4‐hydroxyphenyl)methane (or 4,4′,4′′‐methanetriyltriphenol), C19H16O3, molecules are connected by O—H⃛O hydrogen bonds [O⃛O = 2.662 (2) and 2.648 (2) Å] into two‐dimensional square networks that are twofold interpenetrated. In tris(4‐hydroxyphenyl)methane–4,4′‐bipyridine (1/1), C19H16O3·C10H8N2, trisphenol molecules form rectangular networks via O—H⃛O [O⃛O = 2.694 (3) Å] and C—H⃛O [C⃛O = 3.384 (3) Å] hydrogen bonds. Bipyridine molecules hydrogen bonded to phenol moieties [O⃛N = 2.622 (3) and 2.764 (3) Å] fill the voids to complete the structure. 相似文献
17.
A. van der Lee M. Barboiu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(4):m156-m158
The structure of the title supramolecular complex, [Cu(C7H5O2)2(C5H6N2)2]·0.75C6H6, has been determined. The Cu2+ ion lies on an inversion centre and is coordinated by four O atoms of two opposing benzoate molecules and two pyridine N atoms of two opposing aminopyridine molecules. The partially occupied benzene site lies across a twofold rotation axis. The crystal structure is dominated by two‐dimensional networks containing two different hydrogen‐bonded rings [(16) and (8)]. 相似文献
18.
trans‐Diaquabis(5‐carboxy‐1H‐imidazole‐4‐carboxylato‐κ2N3,O4)cobalt(II) 4,4′‐bipyridine solvate
Rong Cao Yu‐Ling Wang Wen‐Hua Bi 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(12):m609-m611
In the title compound, [Co(C5H3N2O4)2(H2O)2]·C10H8N2, the Co atom is trans‐coordinated by two pairs of N and O atoms from two monoanionic 4,5‐dicarboxyimidazole ligands, and by two O atoms from two coordinated water molecules, in a distorted octahedral geometry. The 4,4′‐bipyridine solvent molecule is not involved in coordination but is linked by an N—H⋯N hydrogen bond to the neutral [Co(C5H3N2O4)2(H2O)2] molecule. Both molecules are located on inversion centers. The crystal packing is stabilized by N—H⋯N and O—H⋯O hydrogen bonds, which produce a three‐dimensional hydrogen‐bonded network. Offset π–π stacking interactions between the pyridine rings of adjacent 4,4′‐bipyridine molecules were observed, with a face‐to‐face distance of 3.345 (1) Å. 相似文献
19.
Yalc˛ın Elerman Hülya Kara Keith Prout Andrew Johnston 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(10):1222-1224
The title compound, C9H19N3O·C4H7NO2, displays strong intramolecular O—H⃛N [O⃛N 2.6743 (13) Å] and N—H⃛N [N⃛N 2.6791 (15) Å] hydrogen bonds, and strong intermolecular O—H⃛N [O⃛N 2.7949 (15) Å] and N—H⃛O [N⃛O 3.0924 (16) Å] hydrogen bonds. This creates chains of perhydropyrimidine molecules, linked by hydrogen bonds. Each chain is linked to a partner chain, through hydrogen bonds to two butane-2,3-dione monooxime molecules, in a structure reminiscent of a ladder. 相似文献
20.
Nina Lah Gerald Giester Primo egedin Anica Murn Katja Podlipnik Ivan Leban 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(5):546-548
The title compounds, tetrakis(μ‐benzoato‐O:O′)bis(2,6‐diaminopyridine)‐1κN,2κN‐dicopper(II)–acetonitrile (1/2), [Cu2(C7H5O2)4(C5H7N3)2]·2C2H3N, (I), and bis(acetonitrile)‐1κN,2κN‐tetrakis(μ‐benzoato‐O:O′)dicopper(II)–acetonitrile (1/1.5), [Cu2(C7H5O2)4(C2H3N)2]·1.5C2H3N, (II), crystallize as acetonitrile solvates exhibiting different stability. They have similar molecular structures with discrete dimeric units located at crystallographic inversion centres. The copper ions are bridged by four benzoate groups and neutral N‐donor ligands, viz. 2,6‐diaminopyridine in (I) and acetonitrile in (II), are coordinated at apical positions. The diverse stability is probably due to hydrogen‐bond interactions of the solvated acetonitrile molecules with neighbouring dimers in compound (I). 相似文献