共查询到20条相似文献,搜索用时 31 毫秒
1.
Andrej Pevec Alojz Demar Katsuyuki Aoki Iztok Turel 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(11):m545-m547
In the structure of the title compound, {[Rh2(C2H3O2)4(C7H18N2O)]·0.5C4H8O}n or {[Rh2(O2CMe)4(Hbdmap)]·0.5C4H8O}n, where Hbdmap is 1,3‐bis(dimethylamino)propan‐2‐ol, each Hbdmap ligand is coordinated to two [Rh2(O2CMe)4] units by two N atoms, resulting in a polymeric chain structure. The observed coordination mode of the Hbdmap molecule is unprecedented. 相似文献
2.
Ming‐Lin Guo Chen‐Hu Guo 《Acta Crystallographica. Section C, Structural Chemistry》2009,65(5):m195-m197
In the title complex, {[La2(C5H6O4)3(H2O)4]·H2O}n, the La atoms are connected by bridging O atoms from carboxylate groups to build, through centres of inversion, two‐dimensional layers parallel to the ac plane containing decanuclear 20‐membered rings. The coordinated water molecules are involved in intralayer hydrogen‐bond interactions. Adjacent layers are linked via hydrogen bonding to the solvent water molecules. This work represents the first example of a new substituted malonate–lanthanide complex. 相似文献
3.
Mao‐Lin Hu Qian Miao Qian Shi Ming‐De Ye 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(9):m460-m464
In the two related polymeric title compounds, {[La2(sip)2(phen)2(H2O)3]·H2O}n [sip is the 5‐sulfonatoisophthalate trianion (C8H3O7S3−) and phen is 1,10‐phenanthroline (C12H8N2)], (I), and {[La(sip)(H2O)3]·H2O}n, (II), the lanthanum(III) ions are nine‐coordinate, with similar distorted monocapped square‐antiprism coordination geometry. The two crystal structures are very different. In (I), the sip anion acts as a pentadentate ligand, one of the coordinated water molecules lies on a twofold axis and further inversion, n‐glide and translation operations generate a two‐dimensional framework. In (II), the sip anion functions as a hexadentate ligand and a three‐dimensional network with trinuclear 24‐membered rings is developed via inversion, n‐glide, twofold‐screw and translation operations. Both structures also have extensive O—H⋯O hydrogen‐bonded networks and π–π interactions. 相似文献
4.
Griselda Polla María Teresa Garland Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(9):m385-m388
In the title lanthanum complex, {[La(C4H4O5)(H2O)3]NO3}n, the lanthanum cation is immersed in a nine‐coordinate environment provided by a tridentate oxydiacetate (oda) ligand (through two carboxylate and one ether O atoms), three carboxylate O atoms from neighbouring oda ligands and three aqua ligands. The LaO9 polyhedra are interlinked into a tight three‐dimensional framework, which leaves holes where the nitrate anions lodge. The links to the polymeric framework are by an extensive hydrogen‐bonding scheme utilizing all the water H atoms. Thermogravimetric analysis shows that the three coordinated water molecules leave the structure in two well differentiated steps. 相似文献
5.
Hong‐Yu Chen Qi Fang Gang Xue Wen‐Tao Yu 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(12):m535-m537
In the title compound, {[K2Ni(C5O5)2(H2O)2]·4H2O}n, the Ni atom lies on an inversion centre. Two inversion‐related croconate [4,5‐dihydroxy‐4‐cyclopentene‐1,2,3‐trionate(2−)] ligands and an NiII ion form a near‐planar symmetrical [Ni(C5O5)2]2− moiety. The near‐square coordination centre of the moiety is then extended to an octahedral core by vertically bonding two water molecules in the [Ni(C5O5)2(H2O)2]2− coordination anion. The crystal structure is characterized by a three‐dimensional network, involving strong K⋯O⋯K binding, K⋯O—Ni binding and hydrogen bonding. 相似文献
6.
Karin Gutkowski Eleonora Freire Ricardo Baggio 《Acta Crystallographica. Section C, Structural Chemistry》2011,67(3):m77-m80
The title complex, {[Pr4(C2H3O2)10(C2O4)(H2O)2]·2H2O}n, was synthesized under hydrothermal conditions from praseodymium acetate and the ionic liquid 1‐butyl‐3‐methylimidazolium chloride via an in situ oxalate‐ligand synthesis. The compound is a two‐dimensional polymer and in the structure presents tightly bound planes parallel to (100), which are in turn linked into a three‐dimensional network by hydrogen bonds involving both coordinated and solvent water molecules. The oxalate anion lies across an inversion centre and acts as a bridge between pairs of Pr atoms within a tetranuclear segment of the polymer. 相似文献
7.
Masoud Mirzaei Hossein Eshtiagh‐Hosseini Zahra Karrabi Behrouz Notash 《Acta Crystallographica. Section C, Structural Chemistry》2013,69(10):1140-1143
4‐Hydroxypyridine‐2,6‐dicarboxylic acid (chelidamic acid, hypydc[H]H2) reacts with MnCl2·2H2O in the presence of piperazine in water to afford the title complex, {[Mn3(C7H2NO5)2(H2O)8]·3H2O}n or {[Mn3(hypydc)2(H2O)8]·3H2O}n. This compound is a one‐dimensional coordination polymer, with the twofold symmetric repeat unit containing three metal centres. Two different coordination geometries are observed for the two independent MnII metal centres, viz. a distorted pentagonal bipyramid and a distorted octahedron. The 4‐oxidopyridine‐2,6‐dicarboxylate anions and two of the water molecules act as bridging ligands. The zigzag‐like geometry of the coordination polymer is stabilized by hydrogen bonds. O—H...O and C—H...O hydrogen bonds and water clusters consolidate the three‐dimensional network structure. 相似文献
8.
Guo‐Ming Wang Hai‐Lan Huang Hui Li Qing‐Hua Zheng 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(11):m531-m533
The two isomorphous lanthanide coordination polymers, {[Ln2(C6H4NO2)2(C8H4O4)(OH)2(H2O)]·H2O}n (Ln = Er and Tm), contain two crystallographically independent Ln ions which are both eight‐coordinated by O atoms, but with quite different coordination environments. In both crystal structures, adjacent Ln atoms are bridged by μ3‐OH groups and carboxylate groups of isonicotinate and benzene‐1,2‐dicarboxylate ligands, forming infinite chains in which the Er...Er and Tm...Tm distances are in the ranges 3.622 (3)–3.894 (4) and 3.599 (7)–3.873 (1) Å, respectively. Adjacent chains are further connected through hydrogen bonds and π–π interactions into a three‐dimensional supramolecular framework. 相似文献
9.
Mervi Kontturi Sirpa Perniemi Jouko J. Vepslinen Markku Ahlgrn 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(11):m592-m594
The title compound, {[Ba3(CHCl2O6P2)2(H2O)4]·H2O}n or {[Ba3(Cl2CP2O6H)(H2O)4]·H2O}n, is two‐dimensional. The asymmetric unit contains three independent Ba2+ atoms, two chelating and bridging Cl2CP2O6H3− ligands and four aqua ligands, connected in layers parallel to the (100) plane. There are pores between the layers in the direction of the b axis filled with lattice water molecules. 相似文献
10.
Ricardo Baggio Mireille Perec Maria Teresa Garland 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(5):m175-m177
A polymeric heterometallic compound, {[Gd2Zn3(C4H4O5)6(H2O)6]·12H2O}n, comprising zinc(II) and gadolinium(III) cations bridged by carboxylate groups from oxydiacetate ligands, is presented. The GdIII cations lie at sites with crystallographic 32 symmetry and display a tricapped trigonal‐prism arrangement, which is defined by six carboxyl and three ether O atoms. The ZnII cations lie at sites with imposed 2/m symmetry and are octahedrally coordinated by four carboxyl O atoms and two apical water ligands, which form strong intramolecular hydrogen bonds. Comparison is made with the previously reported isostructural homologous copper–gadolinium complex. 相似文献
11.
Qing‐Ling Ni Fa‐Si Li Xiu‐Jian Wang Xian‐Su Bi Sen Liao 《Acta Crystallographica. Section C, Structural Chemistry》2007,63(9):m416-m418
The title compound, {[Cu(C14H9NO3)(C5H5N)]·C3H7NO}n or {[Cu2L2(py)2]·2DMF}n [py is pyridine, L is 4‐(salicylideneamino)benzoate and DMF is dimethylformamide], is composed of dimeric dicopper [CuL(py)]2 building units, which are interlinked into a one‐dimensional chain through the formation of Cu—OCOO bonds. The dimeric unit is centrosymmetric, containing two CuII atoms linked by bridging phenolate O atoms into a Cu2O2 plane with a chelating Cu—O bond length of 1.927 (2) Å and a bridging Cu—O bond length of 2.440 (2) Å. Interchain C—H...O and π–π stacking interactions are responsible for an extensive three‐dimensional structure in which the resulting channels are filled by DMF solvent molecules. 相似文献
12.
Wei Su Wen‐Hua Bi Xing Li Rong Cao 《Acta Crystallographica. Section C, Structural Chemistry》2005,61(1):m16-m18
The hydrothermal reaction of Cd(CH3COO)2·2H2O, 4,4′‐bipyridyl and 2‐sulfobenzoic acid produced the title compound, {[Cd2(C7H4O5S)2(C10H8N2)2(H2O)2]·2H2O}n, which forms a two‐dimensional coordination polymer, the sheets of which are linked via hydrogen bonds. Two different types of Cd atoms are present, one lying on a twofold rotation axis and the other on a centre of inversion. Similarly, there are two types of bipyridyl ligand present, one lying across a twofold rotation axis and the other across a centre of inversion. 相似文献
13.
Julia A. Rusanova Eduard B. Rusanov Konstantin V. Domasevitch 《Acta Crystallographica. Section C, Structural Chemistry》2010,66(8):m207-m210
The title compound, {[U(C12H14O4)O2(H2O)]·H2O}n, is the first actinide complex featuring adamantanecarboxylate ligands. The metal ion possesses a pentagonal–bipyramidal UO7 coordination involving two axial oxide ligands [U—O = 1.732 (5) and 1.764 (5) Å] and five equatorial O atoms [U—O = 2.259 (5)–2.494 (4) Å] of aqua and carboxylate ligands. The latter display pseudo‐chelating and bridging coordination modes of the carboxylate groups that are responsible for the generation of the centrosymmetric discrete uranium–carboxylate [UO2(μ‐RCOO)2UO2] dimers [U...U = 5.5130 (5) Å] and their connection into one‐dimensional chains. Hydrogen bonding involving two coordinated and two solvent water molecules [O...O = 2.719 (7)–2.872 (7) Å] yields centrosymmetric (H2O)4 ensembles and provides noncovalent linkage between the coordination chains to generate a three‐dimensional network structure. 相似文献
14.
Meng Wen Zu‐Ping Xiao Chun‐Ya Wang Xi‐He Huang 《Acta Crystallographica. Section C, Structural Chemistry》2015,71(2):136-139
The title compound, {[Zn4(C8H4O4)3(OH)2(C12H6N2O2)2]·2H2O}n, has been prepared hydrothermally by the reaction of Zn(NO3)2·6H2O with benzene‐1,4‐dicarboxylic acid (H2bdc) and 1,10‐phenanthroline‐5,6‐dione (pdon) in H2O. In the crystal structure, a tetranuclear Zn4(OH)2 fragment is located on a crystallographic inversion centre which relates two subunits, each containing a [ZnN2O4] octahedron and a [ZnO4] tetrahedron bridged by a μ3‐OH group. The pdon ligand chelates to zinc through its two N atoms to form part of the [ZnN2O4] octahedron. The two crystallographically independent bdc2− ligands are fully deprotonated and adopt μ3‐κO:κO′:κO′′ and μ4‐κO:κO′:κO′′:κO′′′ coordination modes, bridging three or four ZnII cations, respectively, from two Zn4(OH)2 units. The Zn4(OH)2 fragment connects six neighbouring tetranuclear units through four μ3‐bdc2− and two μ4‐bdc2− ligands, forming a three‐dimensional framework with uninodal 6‐connected α‐Po topology, in which the tetranuclear Zn4(OH)2 units are considered as 6‐connected nodes and the bdc2− ligands act as linkers. The uncoordinated water molecules are located on opposite sides of the Zn4(OH)2 unit and are connected to it through hydrogen‐bonding interactions involving hydroxide and carboxylate groups. The structure is further stabilized by extensive π–π interactions between the pdon and μ4‐bdc2− ligands. 相似文献
15.
Olga M. Nazarenko Eduard B. Rusanov Alexander N. Chernega Konstantin V. Domasevitch 《Acta Crystallographica. Section C, Structural Chemistry》2013,69(3):232-236
In poly[[bis(μ‐4,4′‐bi‐1H‐pyrazole‐κ2N2:N2′)bis(3‐carboxyadamantane‐1‐carboxylato‐κO1)cobalt(II)] dihydrate], {[Co(C12H15O4)2(C6H6N4)2]·2H2O}n, (I), the Co2+ cation lies on an inversion centre and the 4,4′‐bipyrazole (4,4′‐bpz) ligands are also situated across centres of inversion. In its non‐isomorphous cadmium analogue, {[Cd(C12H15O4)2(C6H6N4)2]·2H2O}n, (II), the Cd2+ cation lies on a twofold axis. In both compounds, the metal cations adopt an octahedral coordination, with four pyrazole N atoms in the equatorial plane [Co—N = 2.156 (2) and 2.162 (2) Å; Cd—N = 2.298 (2) and 2.321 (2) Å] and two axial carboxylate O atoms [Co—O = 2.1547 (18) Å and Cd—O = 2.347 (2) Å]. In both structures, interligand hydrogen bonding [N...O = 2.682 (3)–2.819 (3) Å] is essential for stabilization of the MN4O2 environment with its unusually high (for bulky adamantanecarboxylates) number of coordinated N‐donor co‐ligands. The compounds adopt two‐dimensional coordination connectivities and exist as square‐grid [M(4,4′‐bpz)2]n networks accommodating monodentate carboxylate ligands. The interlayer linkage is provided by hydrogen bonds from the carboxylic acid groups via the solvent water molecules [O...O = 2.565 (3) and 2.616 (3) Å] to the carboxylate groups in the next layer [O...O = 2.717 (3)–2.841 (3) Å], thereby extending the structures in the third dimension. 相似文献
16.
Xu‐Cheng Fu Xiao‐Yan Wang Ming‐Tian Li Xiao‐Tao Deng Cheng‐Gang Wang 《Acta Crystallographica. Section C, Structural Chemistry》2006,62(8):m343-m345
The title complex, {[Cu2(C8H4O4)2(C3H4N2)4(H2O)]·H2O}n, is a three‐dimensional polymer formed through bridging by phthalate dianions of two different CuII cations and a network of O(N)—H⋯O hydrogen bonds. The Cu—O and Cu—N interaction distances are in the ranges 2.0020 (16)–2.4835 (17) and 1.968 (2)–1.9855 (19) Å, respectively. The structure is composed of alternating polymer chains parallel to the c axis, with a shortest Cu⋯Cu distance of 6.3000 (5) Å. 相似文献
17.
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
18.
Andr Deluzet Olivier Guillou 《Acta Crystallographica. Section C, Structural Chemistry》2003,59(7):m277-m279
The title compound is composed of one‐dimensional polymeric {[Er2(C12O12)(H2O)10]·4H2O}n chains containing Er in a slightly distorted antiprismatic eightfold coordination. The benzenehexacarboxylate ion is located about an inversion centre. Water molecules of crystallization, linked by hydrogen bonding to water molecules of the rare earth coordination spheres or the carboxylate groups of the organic ligands, fill the space generated by the packing of the separated chains. 相似文献
19.
《Acta Crystallographica. Section C, Structural Chemistry》2018,74(6):734-741
The combination of cobalt, 3,5‐di‐tert‐butyldioxolene (3,5‐dbdiox) and 1‐hydroxy‐1,2,4,5‐tetrakis(pyridin‐4‐yl)cyclohexane (tpch) yields two coordination polymers with different connectivities, i.e. a one‐dimensional zigzag chain and a two‐dimensional sheet. Poly[[bis(3,5‐di‐tert‐butylbenzene‐1,2‐diolato)bis(1,5‐di‐tert‐butyl‐4‐oxocyclohexa‐2,5‐dien‐1‐yl‐3‐olato)[μ4‐1‐hydroxy‐1,2,4,5‐tetrakis(pyridin‐4‐yl)cyclohexane]cobalt(III)]–ethanol–water 1/7/5], {[Co2(C14H20O2)4(C26H24N4O)]·7C2H5OH·5H2O}n or {[Co2(3,5‐dbdiox)4(tpch)}·7EtOH·5H2O}n, is the second structurally characterized example of a two‐dimensional coordination polymer based on linked {Co(3,5‐dbdiox)2} units. Variable‐temperature single‐crystal X‐ray diffraction studies suggest that catena‐poly[[[(3,5‐di‐tert‐butylbenzene‐1,2‐diolato)(1,5‐di‐tert‐butyl‐4‐oxocyclohexa‐2,5‐dien‐1‐yl‐3‐olato)cobalt(III)]‐μ‐1‐hydroxy‐1,2,4,5‐tetrakis(pyridin‐4‐yl)cyclohexane]–ethanol–water (1/1/5)], {[Co(C14H20O2)2(C26H24N4O)]·C2H5OH·5H2O}n or {[Co(3,5‐dbdiox)2(tpch)]·EtOH·5H2O}n, undergoes a temperature‐induced valence tautomeric interconversion. 相似文献
20.
E. Yang Jian Zhang Yi‐Hang Wen Yu‐Biao Chen Yao Kang Zhao‐Ji Li Yuan‐Gen Yao 《Acta Crystallographica. Section C, Structural Chemistry》2004,60(6):m280-m282
The hydrothermal reaction of an aqueous solution of Cu(CH3COO)2·H2O, 1,2,4,5‐benzenetetracarboxylic acid and 4,4′‐bipyridine gave rise to the interesting title three‐dimensional polymer {[Cu6(btec)3(4,4′‐bpy)3(H2O)2]·2H2O}n (btec is 1,2,4,5‐benzenetetracarboxylate, C10H2O84−, and 4,4′‐bpy is 4,4′‐bipyridine, C10H8N2), in which each btec ligand links six copper(II) cations into a lamellar [Cu6(btec)3(H2O)2]n subpolymer framework. There are two distinct diamine units and two distinct carboxylate units, with one of each lying across an inversion centre. 相似文献