TY - JOUR
T1 - A family of double-layered coordination polymers containing Cd 2+, N,O-chelating ligands, and bridging SCN- and Cl -
AU - Srinivasan, Krishnan
AU - Kathiresan, Ayyasami
AU - Govindarajan, Subbaiah
AU - Aughey, Joel T.
AU - Harrison, William T. A.
PY - 2014/4
Y1 - 2014/4
N2 - The syntheses, structures, and characterization (IR, TGA/DTA) of a family of layered coordination polymers containing Cd2+, bridging anions (SCN- and Cl-), and chelating C2H 6N2O2 methyl carbazate (mc) and C 3H8N2O2 ethyl carbazate (ec) ligands are described, viz: Cd(SCN)2(C2H6N 2O2), Cd(SCN)Cl(C2H6N 2O2), Cd(SCN)2(C3H8N 2O2), and Cd(SCN)Cl(C3H8N 2O2). Single-crystal structures show them to contain distorted CdN3OS2 (for the thiocyanate) and CdN 2OCl2S (for the thiocyanate/chloride) octahedra, in which the mc and ec ligands adopt an N,O-bidentate coordination mode, and the four anions bridge adjacent metal ions, which leads to polymeric sheets built up from double-octahedral layers propagating in the (1 0 0) plane. The topological linkage of the metal ions, which is the same in each structure, can be described as a distorted hexagonal grid. The crystal structures are completed by weak N-HO, N-HN, N-HCl, and N-HS hydrogen bonds, which all occur within the (1 0 0) polyhedral layers.
AB - The syntheses, structures, and characterization (IR, TGA/DTA) of a family of layered coordination polymers containing Cd2+, bridging anions (SCN- and Cl-), and chelating C2H 6N2O2 methyl carbazate (mc) and C 3H8N2O2 ethyl carbazate (ec) ligands are described, viz: Cd(SCN)2(C2H6N 2O2), Cd(SCN)Cl(C2H6N 2O2), Cd(SCN)2(C3H8N 2O2), and Cd(SCN)Cl(C3H8N 2O2). Single-crystal structures show them to contain distorted CdN3OS2 (for the thiocyanate) and CdN 2OCl2S (for the thiocyanate/chloride) octahedra, in which the mc and ec ligands adopt an N,O-bidentate coordination mode, and the four anions bridge adjacent metal ions, which leads to polymeric sheets built up from double-octahedral layers propagating in the (1 0 0) plane. The topological linkage of the metal ions, which is the same in each structure, can be described as a distorted hexagonal grid. The crystal structures are completed by weak N-HO, N-HN, N-HCl, and N-HS hydrogen bonds, which all occur within the (1 0 0) polyhedral layers.
KW - Bidentate ligand
KW - Bridging ligand
KW - Crystal structure
KW - Layered coordination network
UR - http://www.scopus.com/inward/record.url?scp=84899963283&partnerID=8YFLogxK
U2 - 10.1080/00958972.2013.867038
DO - 10.1080/00958972.2013.867038
M3 - Article
AN - SCOPUS:84899963283
VL - 67
SP - 857
EP - 869
JO - Journal of Coordination Chemistry
JF - Journal of Coordination Chemistry
SN - 0095-8972
IS - 5
ER -