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Jian-fang Ma

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Organization: Northeast Normal University
Department: Department of Chemistry
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A New System in Organooxotin Cluster Chemistry Incorporating Inorganic and Organic Spacers between Two Ladders Each Containing Five Tin Atoms
Co-reporter:Guo-Li Zheng Dr.;Jin Yang;Yin-Yan Li;Xiang-Rong Hao
Chemistry - A European Journal 2004 Volume 10(Issue 15) pp:
Publication Date(Web):15 JUN 2004
DOI:10.1002/chem.200400202

Hydrolysis of dibenzyltin dichloride in ethanol has been found to give an unprecedented carbonate anion (CO32−)-bridged double-ladder organooxotin cluster, [(R2SnO)3(R2SnOH)2(CO3)]2 (1, R = C6H5CH2), with five tin atoms in each ladder. With the aim of obtaining organooxotin clusters with large cavities suitable for host–guest chemistry, we used 1,1′-ferrocenedicarboxylic acid (H2La) and hexanedioic acid (H2Lb) to replace the carbonate anions (CO32−), and thereby clusters [(R2SnO)3(R2SnOH)2La]2 (2) and [(R2SnO)3(R2SnOH)2Lb]2 (3) were obtained. When 1 was treated with benzoic acid (HLc) in different stoichiometric ratios (1:4, 1:10), ladder cluster (R2SnO)3(R2SnOH)2(Lc)2 (4) and drum cluster [RSn(O)Lc]6 (5) were obtained. Through the hydrolysis of Cy2SnCl2 (Cy = C6H11) and (C6H5CH2)2SnCl2, two interesting ethanolate-modified clusters [Cy2(C2H5O)SnOSn(C2H5O)Cy2]2 (6) and [(R2SnO)3(R2SnOH)(R2SnOC2H5)(CO3)]2 (7) were obtained. All the tin atoms in these ladder clusters are five-coordinate surrounded by two alkyl groups and three O atoms, and have distorted trigonal-bipyramidal coordination environments with two carbon atoms and one O atom in the equatorial positions and two O atoms in the axial positions. The structures of all these compounds have been established by single-crystal X-ray diffraction analyses.

A Mixed-Valence Tin–Oxygen Cluster Containing Six Peripheral Ferrocene Units
Co-reporter:Guo-Li Zheng Dr.;Zhong-Min Su;Li-Kai Yan;Jin Yang;Yin-Yan Li;Jing-Fu Liu
Angewandte Chemie 2004 Volume 116(Issue 18) pp:
Publication Date(Web):22 APR 2004
DOI:10.1002/ange.200353359

Desalkylierung vonnBu2SnO mit 1,1′-Ferrocendicarbonsäure führt zu einem gemischtvalenten Sn-SnO4-Cluster. Der kubische Zinn-Sauerstoff-Kern ist mit sechs Ferroceneinheiten über zwölf Carboxylatbrücken so verbunden, dass die Eisenzentren die Ecken eines regulären Oktaeders besetzen (siehe Struktur).

A Mixed-Valence Tin–Oxygen Cluster Containing Six Peripheral Ferrocene Units
Co-reporter:Guo-Li Zheng Dr.;Zhong-Min Su;Li-Kai Yan;Jin Yang;Yin-Yan Li;Jing-Fu Liu
Angewandte Chemie International Edition 2004 Volume 43(Issue 18) pp:
Publication Date(Web):22 APR 2004
DOI:10.1002/anie.200353359

Dealkylation ofnBu2SnO with 1,1′-ferrocenedicarboxylic acid gives a mixed-valence Sn-SnO4 cluster. The cubic tin–oxygen core is connected to six ferrocene units through twelve carboxylate bridges in such a way that the iron centers occupy the vertices of a regular octahedron (see structure: Fe Red; C gray; O green; Sn brown).

Divalent transition metal phosphonates with new structure containing hydrogen-bonded layers of phosphonate anions
Co-reporter:Jin Yang, Jian-Fang Ma, Guo-Li Zheng, Li Li, Fang-Fang Li, Yong-Mei Zhang, Jing-Fu Liu
Journal of Solid State Chemistry 2003 Volume 174(Issue 1) pp:116-124
Publication Date(Web):August 2003
DOI:10.1016/S0022-4596(03)00185-3
A series of divalent transition metal phosphonates containing hydrogen-bonded layers of phosphonate anions, namely [M(phen)3]·C6H5PO3·11H2O [M=Co(1), Ni(2), Cu(3)] and [Cd(phen)3]·C6H5PO3H·Cl·7H2O (4) have been synthesized, structurally characterized by single-crystal X-ray diffraction method. These compounds all crystallize in the triclinic system, space group P-1. The lattice parameters are a=12.1646(5), b=12.4155(6), c=15.4117(10) Å, α=78.216(2), β=79.735(3), γ=77.8380(3)°, V=2205.1(2) Å3, Z=2 for 1; a=12.097(2), b=12.606(3), c=15.742(3) Å, α=76.66(3), β=80.04(3), γ=77.75(3)°, V=2263.4(8) Å3, Z=2 for 2; a=12.058(2), b=12.518(3), c=15.781(3) Å, α=77.77(3), β=80.02(3), γ=77.91(3)°, V=2255.5(8) Å3, Z=2 for 3 and a=12.47680(10), b=12.6693(2), c=16.1504(3) Å, α=82.600(1), β=71.122(1), γ=77.355(1)°, V=2352.37(6) Å3, Z=2 for 4. All structures are refined by full-matrix least-squares methods [for 1, R1=0.0602 using 6458 independent reflections with I>2σ(I); for 2, R1=0.0632 using 4657 independent reflections with I>2σ(I); for 3, R1=0.0634 using 6221 independent reflections with I>2σ(I); for 4, R1=0.0400 using 7930 independent reflections with I>2σ(I)]. In the crystal structures, the phenylphosphonate anions and water molecules are hydrogen-bonded to form layers, and there exist the cationic species [M(phen)3]2+ between the adjacent layers of anions and water. Luminescence, thermal analysis as well as IR spectroscopic studies are also presented.
Networks with hexagonal circuits in co-ordination polymers of metal ions (ZnII, CdII) with 1,1′-(1,4-butanediyl)bis(imidazole)
Co-reporter:Jian-Fang Ma, Jing-Fu Liu, Yan Xing, Heng-Qing Jia and Yong-Hua Lin  
Dalton Transactions 2000 (Issue 14) pp:2403-2407
Publication Date(Web):30 Jun 2000
DOI:10.1039/B002433N
Three new compounds, [ZnL1.5(H2O)(SO4)]·6H2O 1, [ZnL1.5(H2O)2][NO3]2·2H2O 2 and [CdL1.5(H2O)2(SO4)]·4H2O 3 were obtained from self-assembly of the corresponding metal salts with 1,1′-(1,4-butanediyl)bis(imidazole) (L). In both 1 and 2 zinc ion is five-co-ordinated, showing a less-common trigonal bipyramidal co-ordination polyhedron, while cadmium ion of 3 is six-co-ordinated with a common octahedral arrangement. The sulfate ions of 1 and 3 are co-ordinated, however the nitrate ions of 2 are not. Each of the three compounds is composed of a (6, 3) network with the hexagonal smallest circuit containing six metal ions and six L; each L is co-ordinated to two metal ions, acting as a bridging ligand. In 1 the 2-D sheet of (6, 3) networks is interpenetrated in an inclined mode by symmetry related, identical sheets to give an interlocked 3-D structure, while the (6, 3) networks of both 2 and 3 stack in a parallel fashion to construct frameworks having channels.
Two new coordination polymers of Co(II) with 1,1′-(1,4-butanediyl)bis(benzimidazole)
Co-reporter:Jian-Fang Ma, Jing-Fu Liu, Ying-Chun Liu, Yan Xing, Heng-Qing Jia and Yong-Hua Lin  
New Journal of Chemistry 2000 vol. 24(Issue 10) pp:759-763
Publication Date(Web):14 Sep 2000
DOI:10.1039/B004787M
Two new compounds, [CoL2(H2O)2](NO3)2·8H2O (1) and [CoL(H2O)2(CH3CO2)2]·H2O (2), were obtained from self-assembly of the corresponding metal salts with 1,1′-(1,4-butanediyl)bis(benzimidazole) (L). In 1, each cobalt ion is coordinated to four nitrogen atoms from four molecules of L, and to two water molecules. Metal ions are bridged by L ligands to form infinite (4, 4) networks that contain 44-membered rings. The (4, 4) networks of 1 stack in a parallel fashion, resulting in the formation of large channels in the material. In 2, each cobalt ion is coordinated to two N atoms from two L molecules, two water molecules and two carboxylate O atoms from two acetate anions. Each L molecule is coordinated to two cobalt ions, acting as a bridging ligand as in 1. The bridged cobalt ions form an infinite zigzag chain structure.
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Pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene, 2,8,14,20-tetraethyl-4,10,16,22-tetramethoxy-6,12,18,24-tetrakis(2-propyn-1-yloxy)-
Pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene, 2,8,14,20-tetraethyl-4,10,16,22-tetramethoxy-6,12,18,24-tetrakis(2-propyn-1-yloxy)-
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Pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene, 2,8,14,20-tetraethyl-4,10,16,22-tetramethoxy-6,12,18,24-tetrakis(2-propyn-1-yloxy)-
Pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene, 4,10,16,22-tetramethoxy-2,8,14,20-tetrapentyl-6,12,18,24-tetrakis(2-propyn-1-yloxy)-
Pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene, 4,10,16,22-tetramethoxy-2,8,14,20-tetrapentyl-6,12,18,24-tetrakis(2-propyn-1-yloxy)-
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Pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene, 4,10,16,22-tetramethoxy-2,8,14,20-tetrapentyl-6,12,18,24-tetrakis(2-propyn-1-yloxy)-
21H,23H-Porphine, 5,10,15,20-tetrakis[4-[3-(2-pyrazinyl)-1H-pyrazol-1-yl]phenyl]-
21H,23H-Porphine, 5,10,15,20-tetrakis[4-[3-(2-pyrazinyl)-1H-pyrazol-1-yl]phenyl]-
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21H,23H-Porphine, 5,10,15,20-tetrakis[4-[3-(2-pyrazinyl)-1H-pyrazol-1-yl]phenyl]-
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21H,23H-Porphine, 5,10,15,20-tetrakis[4-(1H-imidazol-1-yl)phenyl]-
21H,23H-Porphine, 5,10,15,20-tetrakis[4-(1H-imidazol-1-yl)phenyl]-
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21H,23H-Porphine, 5,10,15,20-tetrakis[4-(1H-imidazol-1-yl)phenyl]-
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Pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene-4,10,16,22-tetrol, 6,12,18,24-tetramethoxy-2,8,14,20-tetrapentyl-
Pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene-4,10,16,22-tetrol, 6,12,18,24-tetramethoxy-2,8,14,20-tetrapentyl-
CAS:1018448-28-6
Pentacyclo[19.3.1.13,7.19,13.115,19]octacosa-1(25),3,5,7(28),9,11,13(27),15,17,19(26),21,23-dodecaene-4,10,16,22-tetrol, 6,12,18,24-tetramethoxy-2,8,14,20-tetrapentyl-
1H-1,2,4-Triazole, 1,1'-[[1,1'-biphenyl]-4,4'-diylbis(methylene)]bis-
1H-1,2,4-Triazole, 1,1'-[[1,1'-biphenyl]-4,4'-diylbis(methylene)]bis-
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1H-1,2,4-Triazole, 1,1'-[[1,1'-biphenyl]-4,4'-diylbis(methylene)]bis-
1H-1,2,3-Triazole, 1-[(4-fluorophenyl)methyl]-4-phenyl-
1H-1,2,3-Triazole, 1-[(4-fluorophenyl)methyl]-4-phenyl-
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1H-1,2,3-Triazole, 1-[(4-fluorophenyl)methyl]-4-phenyl-