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1.
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
2.
Cheng‐Bing Ma Chang‐Neng Chen Qiu‐Tian Liu 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(10):m469-m472
In the title compound, [Mn(C7H3NO4)(C3H4N2)(C12H8N2)(H2O)], the MnII centre is surrounded by one bidentate phenanthroline ligand [Mn—N = 2.383 (3) and 2.421 (3) Å], one tridentate dipicolinate ligand [Mn—N = 2.300 (3) Å, and Mn—O = 2.300 (2) and 2.357 (2) Å], one monodentate imidazole ligand [Mn—N = 2.238 (3) Å] and one water molecule [Mn—O = 2.157 (3) Å]. It displays a distorted pentagonal‐bipyramidal geometry, with neighbouring angles within the equatorial plane ranging from 68.05 (9) to 77.48 (10)°. Intermolecular O—H...O hydrogen bonds link the molecules into infinite chains. The chains are crosslinked by hydrogen bonds involving the carboxyl O atoms of the dipicolinate ligand and the protonated imidazole N atom, leading to an infinite two‐dimensional network sheet packing mode. The complete solid‐state structure can be described as a three‐dimensional supramolecular framework, stabilized by these intermolecular hydrogen‐bonding interactions and π–π stacking interactions involving the phenanthroline rings. 相似文献
3.
Yan‐Qiong Sun Jie Zhang Guo‐Yu Yang 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m590-m591
A new cadmium coordination polymer, [Cd(C5H2N2O4)(H2O)2]n, possesses a one‐dimensional zigzag chain structure built from CdII centers bridged sequentially by pairs of O and N atoms of the 5‐carboxyimidazole‐4‐carboxylate ligand. The CdII center is in a distorted octahedral geometry, being coordinated by two O atoms from two coordinated water molecules [Cd—O = 2.322 (7) and 2.364 (7) Å], and by two N atoms [Cd—N = 2.222 (6) and 2.232 (6) Å] and two carboxyl O atoms [Cd—O = 2.383 (6) and 2.414 (6) Å] from two 5‐carboxyimidazole‐4‐carboxylate ligands. 相似文献
4.
Cheng‐Bing Ma Hui Chen Ming‐Qiang Hu Chang‐Neng Chen 《Acta Crystallographica. Section C, Structural Chemistry》2011,67(2):m59-m61
In the title compound, [Mn(C5H2N2O4)(C12H9N3)2]·H2O, the MnII centre is surrounded by three bidentate chelating ligands, namely, one 6‐oxido‐2‐oxo‐1,2‐dihydropyrimidine‐5‐carboxylate (or uracil‐5‐carboxylate, Huca2−) ligand [Mn—O = 2.136 (2) and 2.156 (3) Å] and two 2‐(2‐pyridyl)‐1H‐benzimidazole (Hpybim) ligands [Mn—N = 2.213 (3)–2.331 (3) Å], and it displays a severely distorted octahedral geometry, with cis angles ranging from 73.05 (10) to 105.77 (10)°. Intermolecular N—H...O hydrogen bonds both between the Hpybim and the Huca2− ligands and between the Huca2− ligands link the molecules into infinite chains. The lattice water molecule acts as a hydrogen‐bond donor to form double O...H—O—H...O hydrogen bonds with the Huca2− O atoms, crosslinking the chains to afford an infinite two‐dimensional sheet; a third hydrogen bond (N—H...O) formed by the water molecule as a hydrogen‐bond acceptor and a Hpybim N atom further links these sheets to yield a three‐dimensional supramolecular framework. Possible partial π–π stacking interactions involving the Hpybim rings are also observed in the crystal structure. 相似文献
5.
David Martínez Majid Motevalli Michael Watkinson 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(4):m258-m260
The title compound, aquachloro{2,2′‐[1,2‐ethanediylbis(nitrilomethylidyne)]diphenolato‐κ4O,N,N′,O′}manganese(III),[MnCl(C16H14N2O2)(H2O)], is a neutral manganese(III) complex with a pseudo‐octahedral metal centre. The equatorial plane comprises the four donor atoms of the tetradentate Schiff base ligand [Mn—O 1.886 (4) and 1.893 (4) Å, and Mn—N 1.978 (5) and 1.982 (5) Å], with a water molecule [Mn—O 2.383 (4) Å] and a Cl? ligand [Mn—Cl 2.4680 (16) Å] completing the coordination sphere. The distorted geometry is highlighted by the marked displacement of the MnIII ion out of the least‐squares plane of the four Schiff base donor atoms by 0.165 (2) Å. These monomeric MnIII centres are then linked into a polymeric array via hydrogen bonds between the coordinated water molecule and the phenolic O‐atom donors of an adjacent MnIII centre [O—H?O 2.789 (5) and 2.881 (5) Å]. 相似文献
6.
Chengbing Ma Cheng Fan Changneng Chen Qiutian Liu 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(11):m553-m555
In the title compound [systematic name: aqua(1,10‐phenanthroline‐κ2N,N′)(pyridine‐2,6‐dicarboxylato‐κ3O2,N,O6)manganese(II) monohydrate, [Mn(C7H3NO4)(C12H8N2)(H2O)]·H2O, the manganese(II) centre is surrounded by one bidentate phenanthroline ligand [Mn—N = 2.248 (3) and 2.278 (3) Å], one tridentate dipicolinate ligand [Mn—N = 2.179 (3) Å, and Mn—O = 2.237 (2) and 2.266 (2) Å] and one water molecule [Mn—O = 2.117 (3) Å], and it exhibits a strongly distorted octahedral geometry, with trans angles ranging from 144.12 (9) to 158.88 (11)°. Extensive intermolecular hydrogen‐bonding interactions involving coordinated and uncoordinated water molecules and the carboxyl O atoms of the dipicolinate ligand, as well as a stacking interaction involving the phenanthroline rings, are observed in the crystal structure. 相似文献
7.
Shan Gao Xian‐Fa Zhang Li‐Hua Huo Hui Zhao 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(3):m133-m135
In the title complex, [Mn(C5H4NO)2(C5H5NO)2]n or [Mn(μ‐3‐PyO)2(3‐PyOH)2]n (3‐PyO− is the pyridin‐3‐olate anion and 3‐PyOH is pyridin‐3‐ol), the MnII atom lies on an inversion centre and has octahedral geometry, defined by two N atoms and two deprotonated exocyclic O atoms of symmetry‐related pyridin‐3‐olate ligands [Mn—N = 2.3559 (14) Å and Mn—O = 2.1703 (11) Å], as well as two N atoms of terminal 3‐PyOH ligands [Mn—N = 2.3482 (13) Å]. The MnII atoms are bridged by the deprotonated pyridin‐3‐olate anion into a layer structure, generating sheets in the (01) plane. These sheets are linked by O—H⋯O hydrogen bonds. There are also π–π and C—H⋯π interactions in the crystal structure. 相似文献
8.
Ilona Raspertova Roman Doroschuk Dmytro Khomenko Rostislav Lampeka 《Acta Crystallographica. Section C, Structural Chemistry》2012,68(3):m61-m63
The structure of the title compound, [U(C14H9N3O2)O2(CH3OH)2]·CH3OH, is the first to be reported for an actinide complex including triazole ligands. The UVI atom exhibits a pentagonal–bipyramidal NO6 coordination environment, involving two axial oxide ligands [U=O = 1.766 (3) and 1.789 (3) Å], four equatorial O atoms [U—O = 2.269 (3)–2.448 (3) Å] from the ligand and the two coordinated methanol molecules, and one equatorial N atom [U—N = 2.513 (4) Å] from the ligand. In the crystal structure, the complex molecules are linked via intermolecular N—H...O and O—H...O hydrogen bonds to form a two‐dimensional structure. 相似文献
9.
Ivan V. Korendovych Elena V. Rybak‐Akimova 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(2):m82-m84
The crystal structure of the title compound, [MnCl(C28H22N2O2)(C2H6O)], has been determined at 173 (2) K in the non‐centrosymmetric space group P212121. The asymmetric unit contains two molecular units. An intermolecular O—H⋯Cl hydrogen bond is formed between the OH group of an ethanol molecule coordinated to the Mn atom and the coordinated Cl− anion, and so polymeric chains of Mn‐containing fragments are formed [O—H⋯Cl = 3.1281 (16) and 3.1282 (15) Å]. The Mn atoms have a pseudo‐octahedral coordination sphere, with the four donor atoms of the Schiff base forming an equatorial plane [Mn—O distances are 1.8740 (13), 1.8717 (13), 1.8749 (13) and 1.8823 (13) Å, and Mn—N distances are 1.9868 (15), 1.9910 (14), 1.9828 (15) and 1.9979 (14) Å]. The axial positions are occupied by an ethanol molecule [Mn—O distances of 2.3069 (15) and 2.3130 (15) Å] and a Cl− ligand [Mn—Cl distances of 2.5732 (6) and 2.5509 (6) Å]. 相似文献
10.
Peng‐Bin Pan Lei Zhang Zhao‐Ji Li Xin‐Yi Cao Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(6):m270-m272
The title compound, [Zn(C14H8O6S)(H2O)2]n, is the first reported metal complex of the 4,4′‐sulfonyldibenzoate anion. The structure comprises zigzag chains of alternating [Zn(H2O)2]2+ and sulfonyldibenzoate units, the central Zn and S atoms of which lie on crystallographic twofold axes. The ZnII centre occupies a strongly distorted tetrahedral environment [O—Zn—O = 83.30 (7)–136.19 (8)°], coordinated by the two water O atoms [Zn—O = 1.986 (2) Å] and one O atom from each of two carboxylate groups [Zn—O = 1.9942 (19) Å], with much longer contacts to the other O atoms of these carboxylates [Zn—O = 2.528 (2) Å]. Hydrogen bonds between carboxylate O atoms and coordinated water molecules in adjacent chains lead to the formation of a three‐dimensional network structure. 相似文献
11.
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
12.
Alexander S. Lyakhov Pavel N. Gaponik Michail M. Degtyarik Ludmila S. Ivashkevich 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(8):m399-m401
In the title molecular complex, [Cu4Cl6O(2‐EtTz)4], where 2‐EtTz is 2‐ethyltetrazole (C3H6N4), the central O atom is located on the symmetry site and is tetrahedrally coordinated to four Cu atoms, with Cu—O distances of 1.8966 (4) Å. A very slight distortion of Cu4O from a regular tetrahedron is observed [two Cu—O—Cu angles are 108.76 (3)° and four others are 109.828 (13)°]. Each Cu atom is connected to three others via the Cl atoms, forming a slightly distorted Cl octahedron around the O atom, with O⋯Cl distances of 2.9265 (7) Å for Cl atoms lying on the twofold axis and 2.9441 (13) Å for those in general positions. The Cu atom has a distorted trigonal–bipyramidal environment, with three Cl atoms in the equatorial plane, and with the N atom of the 2‐ethyltetrazole ligand and the μ4‐O atom in axial positions. The Cu atom is displaced out of the equatorial plane by ca 0.91 Å towards the coordinated N atom of the 2‐ethyltetrazole ligand. 相似文献
13.
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
14.
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
15.
Yuan‐Zhen Ke Leng‐Feng Zheng Jian‐Hai Luo Xi‐He Huang Chang‐Cang Huang 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(8):m343-m345
The title complex, [Co(C15H12N3O2S)2], consists of an octahedrally coordinated CoII ion, with two crystallographically independent 1,4‐dibenzoylthiosemicarbazidate ligands in a tridentate mer coordination [Co—O = 2.064 (3)–2.132 (3) Å and Co—N = 2.037 (3)–2.043 (3) Å]. There are intermolecular N—H...S hydrogen bonds involving one ligand and strong π–π stacking interactions involving the other ligand, resulting in a three‐dimensional supramolecular framework. The hydrogen bonds and π–π interactions, as well as different intramolecular aryl–benzamide H—C...H(—N) distances, give rise to a difference in conformation between the two ligands. 相似文献
16.
Alexander S. Lyakhov Pavel N. Gaponik Michail M. Degtyarik Ludmila S. Ivashkevich 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(6):m204-m206
In the polymeric title complex, [CuCl2(C3H6N4)2]n, there are two ligands in the asymmetric unit. The Cu atom adopts an elongated octahedral geometry, with two 2‐ethyltetrazole ligands [Cu—N = 2.0037 (16) and 2.0136 (16) Å] and two Cl atoms [Cu—Cl = 2.2595 (6) and 2.2796 (6) Å] in equatorial positions. A Cl atom and a symmetry‐related 2‐ethyltetrazole molecule [Cu—Cl = 2.8845 (8) Å and Cu—N = 2.851 (2) Å] lie in the axial positions of the octahedron. One of the two 2‐ethyltetrazole ligands of the asymmetric unit exhibits bidentate binding to two Cu atoms through two N atoms of the tetrazole ring, whereas the other ligand is coordinated in a monodentate fashion via one tetrazole N atom. The Cu‐atom octahedra form dimer entities by sharing edges with equatorial and axial Cl atoms. The dimers are linked together through the 2‐ethyltetrazole ligands to form one‐dimensional polymeric zigzag chains extending along the b axis. The chains are connected into infinite layers parallel to the (10) plane via the 2‐ethyltetrazole ligands. 相似文献
17.
Pance Naumov Mirjana Ristova Michael G. B. Drew Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2000,56(9):e372-e373
In the title compound, [Ni(C2H3O)2(C3H4N2)4], the Ni atom is coordinated centrosymmetrically by four N and two O atoms in an octahedral coordination [Ni—N = 1.986 (3) and 2.054 (3) Å; Ni—O = 2.697 (3) Å]. The O atoms of the acetate anions form hydrogen bonds to adjacent imidazole moieties, with the free O atom forming a somewhat shorter bond [N?O = 2.679 (3) and 2.870 (4) Å]. The hydrogen bonds give rise to a two‐dimensional layer structure. 相似文献
18.
Ming‐Liang Tong Xiao‐Ming Chen Seik Weng Ng 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(9):m481-m482
In the title compound {alternative name: poly[silver(I)‐μ‐(3‐amino‐2‐chloropyridine)‐μ‐nitrato]}, [Ag(NO3)(C5H5ClN2)]n the AgI atom is in an irregular AgN2O3 geometry, surrounded by one pyridyl N atom [Ag—N 2.283 (5) Å], one amine N atom [Ag—N 2.364 (6) Å] and three O atoms from different nitrate ions [Ag—O 2.510 (6)–2.707 (6) Å]. The Ag ions are bridged by the 3‐amino‐2‐chloropyridine ligands into helical chains. Adjacent uniform chiral chains are further interlinked through the NO3 bridges into an interesting two‐dimensional coordination network in the solid. 相似文献
19.
Zora Popovi Gordana Pavlovi
eljka Soldin Livio Racan Vesna Trali‐Kulenovi 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(1):m4-m6
The title complex, [ZnCl2(C7H6N2S)2], contains a Zn centre with a distorted tetrahedral coordination sphere, involving two Cl− ligands and two endocyclic N atoms from the thiazole moiety [Zn—Cl = 2.2284 (7) and 2.2236 (7) Å, and Zn—N = 2.081 (2) and 2.041 (2) Å]. The interplanar angle between the two ligands is 79.32 (6)°. The amino groups participate in intermolecular N—H⋯Cl hydrogen bonds, with N⋯Cl distances in the range 3.463 (2)–3.519 (2) Å. 相似文献
20.
Guang‐Bo Che Jian Wang Chun‐Bo Liu Xiu‐Ying Li Bo Liu 《Acta Crystallographica. Section C, Structural Chemistry》2008,64(11):m362-m364
The title coordination polymer, poly[bis(μ4‐biphenyl‐2,2′‐dicarboxylato)(dipyrido[3,2‐a:2′,3′‐c]phenazine)manganese(II)], [Mn2(C14H8O4)2(C18H10N4)]n, was obtained through the reaction of MnCl2·4H2O, biphenyl‐2,2′‐dicarboxylic acid (H2dpdc) and dipyrido[3,2‐a:2′,3′‐c]phenazine (L) under hydrothermal conditions. The asymmetric unit contains two crystallographically unique MnII ions, one unique L ligand and two unique dpdc ligands. One Mn ion is six‐coordinated by four O atoms from three different dpdc ligands and two N atoms from one L ligand, adopting a distorted octahedral coordination geometry. The distortions from ideal octahedral geometry are largely due to the presence of chelating ligands and the resulting acute N—Mn—N and O—Mn—O angles. The second Mn ion is coordinated in a distorted trigonal bipyramidal fashion by five O atoms from four distinct dpdc ligands. Four MnII ions are bridged by the carboxylate groups of the dpdc ligands to form an unusual tetranuclear MnII cluster. Clusters are further connected by the aromatic backbone of the dicarboxylate ligands, forming a one‐dimensional chain structure along the b axis. The title compound is the first example of a chain structure based on a tetranuclear MnII cluster. 相似文献