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1.
The title complex, [Ag4(C7H5O3)2(C8H6N2)4(C7H6O3)4], lies about an inversion centre and has a unique tetranuclear structure consisting of four AgI atoms bridged by four N atoms from two 1,8‐naphthyridine (napy) ligands to form an N:N′‐bridge and four O atoms from two salicylate (SA) ligands to form an O:O′‐bridge. The Ag atoms have distorted octahedral coordination geometry. The centrosymmetric Ag4 ring has Ag—Ag separations of 2.772 (2) and 3.127 (2) Å, and Ag—Ag—Ag angles of 107.70 (4) and 72.30 (4)°. All SA hydroxy groups take part in intramolecular O—H⋯O hydrogen bonding. In the crystal packing, the napy rings are oriented parallel and overlap one another. These π–π interactions, together with weak intermolecular C—H⋯O contacts, stabilize the crystal structure. 相似文献
2.
Fen Sun Yan‐Tuan Li Zhi‐Yong Wu Yu‐Lan Song Man Jiang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(12):m584-m586
The structure of the title compound, [Cu2(C12H24N4O2)(C3H4N2)2(CH4O)2](ClO4)2 or [Cu2(dmoxpn)(HIm)2(CH3OH)2](ClO4)2, where dmoxpn is the dianion of N,N′‐bis[3‐(dimethylamino)propyl]oxamide and HIm is imidazole, consists of a centrosymmetric trans‐oxamidate‐bridged copper(II) binuclear cation, having an inversion centre at the mid‐point of the central C—C bond, and two perchlorate anions. The CuII atom has square‐pyramidal coordination geometry involving two N atoms and an O atom from the dmoxpn ligand, an N atom from an imidazole ring, and an O atom from a methanol molecule. The crystal structure is stabilized by O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds and imidazole π–π stacking interactions to form a three‐dimensional supramolecular array. 相似文献
3.
Shan Gao Ji‐Wei Liu Li‐Hua Huo Zhi‐Zhong Sun Jin‐Sheng Gao Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(8):m363-m365
In the title neutral coordination polymer, [Cd(C6H3ClNO2)2(H2O)2]n, each CdII ion is coordinated by one N and four O atoms from three 2‐chloronicotinate ligands and by two aqua ligands, defining a distorted monocapped octahedral coordination geometry. Adjacent Cd atoms are linked by the pyridyl N atom and the bidentate carboxylate functional group of a 2‐chloronicotinate ligand, forming a one‐dimensional infinite chain along the b axis. The Cd⋯Cd distance is 8.112 (3) Å. These chains are linked by O—H⋯O and O—H⋯N hydrogen bonds into a three‐dimensional network structure. 相似文献
4.
Sevim Hamamci Veysel T. Yilmaz Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(1):m1-m3
Crystallization of the title compound, di‐μ‐pyridazine‐1κ2N:2κ2N′‐bis[(2,3‐dihydro‐3‐oxobenzisosulfonazolato‐κN)silver(I)], [Ag2(C7H4NO3S)2(C4H4N2)2], from acetonitrile yields both monoclinic, (I), and triclinic, (II), polymorphs. In both forms, the silver(I) ions have a slightly distorted trigonal AgN3 coordination geometry and are doubly bridged by two neutral pyridazine (pydz) ligands, generating a centrosymmetric dimeric structure. The saccharinate (sac) ligands are N‐coordinated. The dihedral angles between the sac and pydz rings are 8.43 (7) and 7.94 (8)° in (I) and (II), respectively, suggesting that the dimeric molecule is nearly flat. The bond geometry is similar in both polymorphs. In (I), the dimers interact with each other via aromatic πsac–πpydz stacking interactions, forming two‐dimensional layers, which are further crosslinked by weak C—H⋯O interactions. Compound (II) exhibits similar C—H⋯O and π–π interactions, but additional C—H⋯π and π⋯Ag interactions help to stabilize the packing of the dimers. 相似文献
5.
Jian‐Li Lin Yue‐Qing Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(12):m501-m503
In the title compound, [Cu2(C6H8O4)(C6H9O4)2(C10H8N2)2(H2O)2]n, the square‐pyramidally coordinated Cu atoms are bridged by both 4,4‐bipyridine and adipate ligands into ladder‐like chains, with exo‐orientated 5‐carboxypentanoate ligands pendant from both side rails. Half of the adipate ligand is related to the other half by inversion symmetry. Interchain O—H⋯O hydrogen bonds from the aqua ligands to the carbonyl O atoms of the 5‐carboxypentanoate ligands are responsible for the formation of two‐dimensional grid‐like (4,4)‐networks, which complete a twofold interpenetration. 相似文献
6.
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
7.
Ahmet Bulut brahim Uar Okan Zafer Yeilel Hasan budak Halis
lmez Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m526-m528
The title mononuclear [Cu(sq)(phen)2]·3H2O complex [sq is squarate (C4O4) and phen is 1,10‐phenanthroline (C12H8N2)] has been synthesized and the structure consists of a neutral mononuclear [Cu(sq)(phen)2] unit and three solvate water molecules. The CuII ion has distorted square‐pyramidal coordination geometry, comprised of one carboxylate O atom from a monodentate squarate ligand and four N atoms from two chelating phen ligands. An extensive three‐dimensional network of OW—H⋯O/OW hydrogen bonds, face‐to‐face π–π interactions between the 1,10‐phenanthroline aromatic rings and a weak π–ring interaction are responsible for crystal stabilization. 相似文献
8.
Li Li Miao‐Li Zhu Li‐Ping Lu 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(6):m227-m228
In the title compound, [Cu(C4H6N2O3)(C8H8N2)]·3H2O, the CuII atom is coordinated in a square‐planar manner by one O atom and three N atoms from glycylglycinate and 2‐methylbenzimidazole ligands. The ternary complexes assemble into one‐dimensional chains through C—H⋯π interactions and direct N—H⋯O hydrogen bonding, as well as into hydrogen‐bonded water helices with branches which also link the complex chains into a three‐dimensional supramolecular structure. 相似文献
9.
Zhong‐Lu You Hai‐Liang Zhu 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m567-m568
The title complex, [Ag2(C7H5O2)2(C18H18F2N2)]n, is a dinuclear silver(I) compound with one inversion centre between pairs of Ag atoms and another at the mid‐point of the central C—C bond in the butane‐1,4‐diamine moiety. Each of the smallest repeat units consists of two silver(I) cations, two benzoate anions and one N,N′‐bis(2‐fluorobenzylidene)butane‐1,4‐diamine Schiff base ligand. Each AgI ion is three‐coordinated in a trigonal configuration by two O atoms from two benzoate anions and one N atom from a Schiff base ligand. The di‐μ‐benzoato‐disilver(I) moieties are linked by the bridging Schiff base ligand, giving zigzag polymeric chains with an [–Ag⋯Ag—N—C—C—C—C—N–]n backbone running along the b axis. 相似文献
10.
Solvent water tapes in two hydrates of μ‐oxo‐bis[bis(2,2′‐bipyridine‐κ2N,N′)(sulfato‐κO)iron(III)]
O. O. E. Onawumi O. O. P. Faboya O. A. Odunola T. K. Prasad M. V. Rajasekharan 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(10):m480-m483
The title compound, [Fe2O(SO4)2(C10H8N2)4], crystallizes as two different hydrates, viz. 11H2O, (I), and 15H2O, (II). The complex is binuclear, in which the two FeIII atoms are coordinated in an octahedral geometry to four N atoms from the two bipyridine ligands, to one O atom from the sulfate ion and to an oxide ion on a twofold axis, which acts as a bridge between the symmetry‐related units. The Fe⋯Fe separation is 3.556 (4) Å and the Fe—O—Fe angle is 161.6 (2)° in (I); the corresponding values are 3.544 (1) Å and 165.8 (2)° in (II). In (II), one of the O atoms of the sulfate ion is disordered over two positions. In both compounds, the solvent water molecules form slightly different one‐dimensional hydrogen‐bonded networks which pass along the c axis of the unit cell. In (I), three solvent water molecules and, in (II), one solvent water molecule, are situated on the twofold axis. In both (I) and (II), the central O atom of the metal complex lies on a twofold axis. 相似文献
11.
Tetrakis(2,2′‐bipyridine‐κ2N,N′)tetrakis(μ‐salicylato‐κ3O,O′:O′′)‐quadro‐tetrazinc(II) decahydrate
Yue Wang Mamiko Odoko Nobuo Okabe 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m479-m481
The title compound, [Zn4(C7H4O3)4(C10H8N2)4]·10H2O, crystallizes as a centrosymmetric tetranuclear cyclic complex containing four ZnII atoms bridged by four carboxylate groups from salicylate ligands, with a syn–anti configuration. Each ZnII atom has a distorted trigonal–bipyramidal coordination geometry, formed by two N atoms of a 2,2′‐bipyridine ligand and three O atoms from two salicylate ligands. The complex is stabilized by intramolecular π–π interactions between pairs of bipyridine rings and a 16‐membered gear‐wheel‐shaped cyclic framework. The hydrogen‐bonding network is formed via the water molecules. 相似文献
12.
brahim Uar Ahmet Bulut Canan Kazak 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(9):m428-m431
The asymmetric unit of the title compound, {[Pb(C4O4)(C12H8N2)2(H2O)]·2H2O}n, contains one squarate dianion, two phenanthroline (phen) ligands and one aqua ligand all coordinated to Pb, and two solvent water molecules. The eight‐coordinate Pb metal ion displays a distorted bicapped trigonal–prismatic coordination environment, defined by three squarate O atoms, four N atoms from two chelating phen ligands and one O atom from the coordinated water molecule. The crystal structure contains chains of squarate‐1,2,3‐bridged PbII ions running in the [010] direction. These polymeric chains are linked to one another via offset face‐to‐face π–π interactions between the phen ligands, which lead to a two‐dimensional network extending along the (001) plane. The crystal structure is also stabilized by O—H⋯O intermolecular hydrogen‐bond interactions, forming a three‐dimensional network. 相似文献
13.
Ahmet Bulut brahim Uar Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(5):m218-m220
The asymmetric unit of the title compound, {[Cu(C4O4)(C6H6N2O)2(H2O)2]·2H2O}n, consists of one pyridine‐4‐carboxamide (isonicotinamide or ina) ligand, one‐half of a squarate dianion, a coordinated aqua ligand and a solvent water molecule. Both the CuII and the squarate ions are located on inversion centers. The CuII ions are octahedrally surrounded by four O atoms of two water molecules and two squarate anions, and by two N atoms of the isonicotinamide ligands. The crystal structure contains chains of squarate‐1,3‐bridged CuII ions. These chains are held together by N—H⋯O and O—H⋯O intermolecular hydrogen‐bond interactions, forming an extensive three‐dimensional network. 相似文献
14.
Xin‐Yi Cao Jian Zhang Yao Kang Jian‐Kai Cheng Zhao‐Ji Li Xiao‐Qin Wang Yi‐Hang Wen Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(7):m350-m352
In the title compound, {[Zn(C8H4O5)(C12H8N2)]·H2O}n or {[Zn(OH‐BDC)(phen)]·H2O}n (where OH‐H2BDC is 5‐hydroxyisophthalic acid and phen is 1,10‐phenanthroline), the Zn atoms are coordinated by two N atoms from the phen ligands and by four O atoms from hydroxyisophthalate ligands in a highly distorted octahedral geometry, with Zn—O distances in the range 2.042 (4)–2.085 (5) Å and Zn—N distances of 2.133 (5) and 2.137 (5) Å. The {[Zn(OH‐BDC)(phen)]·H2O}n infinite zigzag polymer forms a helical chain of [Zn2(OH‐BDC)2]n units. Face‐to‐face π–π interactions (3.60–3.75 Å) occur between two phen rings belonging to the same helical chain. Consolidation of the packing structure is achieved by O—H⋯O hydrogen‐bonding interactions between the carboxylate O atoms, the hydroxyl group and the water molecule, forming two‐dimensional sheets. 相似文献
15.
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
16.
Shan Gao Ji‐Wei Liu Li‐Hua Huo Hui Zhao Jing‐Gui Zhao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m537-m539
In the title two‐dimensional coordination polymer, [Mn(1,4‐BDOA)(4,4‐bipy)(H2O)2]n [1,4‐BDOA2− is the p‐phenylenedioxydiacetate dianion (C10H8O6) and 4,4‐bipy is 4,4‐bipyridine (C10H8N2)], each MnII atom displays octahedral coordination by two O atoms of the 1,4‐BDOA2− groups, two N atoms of the 4,4‐bipy ligands and two solvent water molecules. The MnII atom, 4,4‐bipy ligand and 1,4‐BDOA2− group occupy different inversion centres. Adjacent MnII atoms are bridged by 1,4‐BDOA2− groups and 4,4‐bipy ligands, forming a two‐dimensional network with Mn⋯Mn separations of 11.592 (2) and 11.699 (2) Å. Hydrogen bonds from a water O—H group link the layers in the third dimension. 相似文献
17.
Hai‐Liang Zhu Xiao‐Yang Qiu Song Yang Si‐Chang Shao Ji‐Long Ma Lin Sun 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(4):m170-m171
The title compound, [Ag2(C7H4ClO2)2(C5H6N2)2], lies about an inversion centre and the Ag atom is three‐coordinated by two O atoms and one N atom from three different ligands. The 4‐chlorobenzoate anion acts as a monodonor ligand, bridging two inversion‐related Ag atoms of the compound into a dimer. There are weak intermolecular N—H⋯O hydrogen bonds in the structure. 相似文献
18.
Yan Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(10):m471-m472
In the title complex, [Ag(NO3)(C14H14N4S4)]n, the AgI atom lies on a twofold axis and shows a distorted tetrahedral coordination, comprised of two N‐atom donors from two thiadiazole groups of separate ligands and two O‐atom donors from one nitrate ligand. Each bis(thioether) ligand also lies on a twofold axis and bridges two adjacent Ag atoms to form an infinite chain along the c axis, with an Ag⋯Ag separation of 11.462 (4) Å. Adjacent one‐dimensional chains are further linked into double‐chain motifs through weak Ag⋯S and π–π stacking interactions. 相似文献
19.
Ahmet Bulut brahim Uar Orhan Büyükgüngr 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(6):m266-m268
In the crystal structure of the synthetically prepared title compound, [Cu(C14H12N2)2](C4HO4)·0.5H2O or [Cu(dmphen)2](HSq)·0.5H2O (dmphen is 2,9‐dimethyl‐1,10‐phenanthroline or neocuproine and HSq is hydrogen squarate), the CuI centre has distorted tetrahedral coordination geometry comprised of four N atoms from two bidentate dmphen ligands. The squarate monoanions form a ten‐membered dimer, graph set R22(10), linked by two strong intermolecular O—H⋯O hydrogen bonds. These squarate dimers are linked into chains that propagate along the [100] direction. An extensive three‐dimensional network of C—H⋯O hydrogen bonds and π–π interactions is responsible for stabilization of the crystal structure. 相似文献
20.
Jaromír Marek Zdenk Trvní
ek Pavel Kopel 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(11):m429-m431
The title compound, [Mn(C12H8N2)2(H2O)2](C4H4O4S)·[Mn(C4H4O4S)(C12H8N2)2]·13H2O, contains one dianion of thiodiglycolic acid (tdga2−) and two independent manganese(II) moieties, viz. [Mn(phen)2(H2O)2]2+ and [Mn(tdga)(phen)2], where phen is 1,10‐phenanthroline. The MnII atoms are octahedrally coordinated by four N atoms of two bidentate phen ligands [Mn—N = 2.240 (2)–2.3222 (19) Å] and either two water O atoms or two tdga carboxyl O atoms [Mn—O = 2.1214 (17)–2.1512 (17) Å]. The tdga ligand chelates as an O,O′‐bidentate ligand, forming an eight‐membered ring with one Mn atom. The free tdga2− dianion is hydrogen bonded to an [Mn(phen)2(H2O)2]2+ ion, with O⋯O distances of 2.606 (2) and 2.649 (2) Å. The crystal structure is further stabilized by an extensive network of hydrogen bonds involving 13 water molecules. 相似文献