TY - JOUR
T1 - Synthesis, crystal structure and magnetic behavior of two new binuclear complexes bridged by a pentadentate ligand
T2 - [NI2L2(NCS)2](ClO4)2 and [NI2L2(NCO)2](ClO4)2] [L = pentadentate ligand]
AU - Deoghoria, Soma
AU - Sain, Sushama
AU - Moulton, Brian
AU - Zaworotko, Michael J.
AU - Bera, Sujit K.
AU - Chandra, Swapan K.
PY - 2002/11/15
Y1 - 2002/11/15
N2 - Two new binuclear nickel(II) complexes [Ni2L2(NCS)2](ClO4)2 (1) and [Ni2L2(NCO)2](ClO4)2 (2), where L is a pentadentate Schiff base ligand derived from the reaction of 2 mol of 2-benzoyl pyridine and 1 mol of diethylene triamine, have been prepared and characterized. The structures of complexes 1 and 2 have been studied by single crystal X-ray diffraction analysis. The structure analysis reveals that each nickel(II) center is coordinated in a distorted octahedral (NiN6) fashion consisting of three nitrogen atoms from one and two nitrogen atoms from other pentadentate ligand and the last one from terminal thiocyanato/cyanato ion. The variable temperature magnetic susceptibility of both compounds 1 and 2 have been studied and found a very weak magnetic interaction between two nickel(II) centers consistent with the structures (Ni⋯Ni distance of 5.809(l) Å for 1 and 5.695(l) Å for 2 with no suitable bridge or linkage to propagate magnetic interaction).
AB - Two new binuclear nickel(II) complexes [Ni2L2(NCS)2](ClO4)2 (1) and [Ni2L2(NCO)2](ClO4)2 (2), where L is a pentadentate Schiff base ligand derived from the reaction of 2 mol of 2-benzoyl pyridine and 1 mol of diethylene triamine, have been prepared and characterized. The structures of complexes 1 and 2 have been studied by single crystal X-ray diffraction analysis. The structure analysis reveals that each nickel(II) center is coordinated in a distorted octahedral (NiN6) fashion consisting of three nitrogen atoms from one and two nitrogen atoms from other pentadentate ligand and the last one from terminal thiocyanato/cyanato ion. The variable temperature magnetic susceptibility of both compounds 1 and 2 have been studied and found a very weak magnetic interaction between two nickel(II) centers consistent with the structures (Ni⋯Ni distance of 5.809(l) Å for 1 and 5.695(l) Å for 2 with no suitable bridge or linkage to propagate magnetic interaction).
KW - Binuclear nickel(II) complexes
KW - Crystal structures
KW - Magnetic properties
KW - Pentadentate ligands
KW - Terminal cyanato ion complexes
KW - Terminal thiocyanato ion complexes
UR - http://www.scopus.com/inward/record.url?scp=0037111527&partnerID=8YFLogxK
U2 - 10.1016/S0277-5387(02)01213-5
DO - 10.1016/S0277-5387(02)01213-5
M3 - Article
AN - SCOPUS:0037111527
SN - 0277-5387
VL - 21
SP - 2457
EP - 2461
JO - Polyhedron
JF - Polyhedron
IS - 24
ER -