CRYSTAL STRUCTURES OF A FAMILY OF LAYERED COORDINATION POLYMERS CONTAINING DIVALENT METAL IONS (Mn2+, Co2+, Ni2+ AND Zn2+) AND THE 3-AMINO 4-METHYL BENZOATE ION
M.K. Khosa1, P.T. Wood2, S.M. Humphrey3, W.T.A. Harrison4
1Government College University, Faisalabad, Pakistan
mkhosapk@yahoo.com
2University of Cambridge, Cambridge, UK
3The University of Texas at Austin, Austin, Texas, USA
4University of Aberdeen, Aberdeen, Scotland
w.harrison@abdn.ac.uk
Ключевые слова: coordination polymer, bridging ligand, layered structure, coordination polymer, bridging ligand, layered structure
Страницы: 1183-1188
Аннотация
The syntheses and crystal structures of the layered coordination polymers M(C8H8NO2)2 [M = Mn (1), Co (2), Ni (3) and Zn (4)] are described. These isostructural compounds contain centrosymmetric trans -MN2O4 octahedra as parts of infinite sheets; the ligand bonds to three adjacent metal ions in m3-N,O,O¢ mode from both its carboxylate O atoms and its amine N atom. In each case, weak intra-sheet N-H⋯O and C-H⋯O hydrogen bonds may help to consolidate the structure. Crystal data: 1, C16H16MnN2O4, M r = 355.25, monoclinic, P 21/ c (No. 14), a = 10.6534(2) Å, b = 4.3990(1) Å, c = 15.5733(5) Å, b = 95.1827(10)°, V = 726.85(3) Å3, Z = 2, R ( F ) = 0.026, wR ( F 2) = 0.067. 2, C16H16CoN2O4, M r = 359.24, monoclinic, P 21/ c (No. 14), a = 10.6131(10) Å, b = 4.3374(4) Å, c = 15.3556(17) Å, b = 95.473(4)°, V = 703.65(12) Å3, Z = 2, R ( F ) = 0.041, wR ( F 2) = 0.091. 3, C16H16N2NiO4, M r = 359.02, monoclinic, P 21/ c (No. 14), a = 10.6374(4) Å, b = 4.2964(2) Å, c = 15.2827(8) Å, b = 95.9744(14)°, V = 694.66(6) Å3, Z = 2, R ( F ) = 0.028, wR ( F 2) = 0.070. 4, C16H16N2O4Zn, M r = 365.68, monoclinic, P 21/ c (No. 14), a = 10.6385(5) Å, b = 4.2967(3) Å, c = 15.2844(8) Å, b = 95.941(3)°, V = 694.89(7) Å3, Z = 2, R ( F ) = 0.038, wR ( F 2) = 0.107.
DOI: 10.15372/JSC20150616 |
