1388789-71-6Relevant articles and documents
A novel polymeric copper(II) compound containing peripheral nitro oxygen bridge and μ-OH core: An unprecedented tetradentate bonding mode of a potentially tridentate Schiff base
Bhaumik, Prasanta Kumar,Chattopadhyay, Shouvik
, p. 14 - 17 (2012)
A copper(II) compound ([LCu(μ-OH)CuL(H2O)]ClO 4)n (1) [where HL = 2-[(2-dimethylamino-ethylimino)- methyl]-4-nitro-phenol, is a well known Schiff base], has been synthesized and characterized by elemental analysis, IR and UV-Vis spectroscopy and single-crystal X-ray diffraction studies. The compound features a copper(II) polymeric coordination network composed of binuclear species [LCu(μ-OH)CuL(H2O)]+ as building blocks. It crystallizes in monoclinic space group P21/c with cell dimensions a = 22.1453(9), b = 7.8314(3), c = 18.5626(8) and β=108.509(3). The potentially tridentate Schiff base shows a tetra-dentate bonding mode for the 1st time.
Copper(II) complexes with tridentate N2O donor Schiff bases: Modulation of crystalline architectures through supramolecular interactions
Bhaumik, Prasanta Kumar,Harms, Klaus,Chattopadhyay, Shouvik
, p. 181 - 190 (2013/10/22)
Three mononuclear copper(II) complexes, [Cu(L1)(DMF)]ClO 4 (1), [Cu(L2)(DMSO)]ClO4 (2) and [CuL 3(NCO)] (3) (where HL1 {2-[(2-methylamino-ethylimino)- methyl]-4-nitro-phenol}, HL2 {2-[(2-ethylamino-ethylimino)-methyl]-4- nitro-phenol} and HL3 {2-[(2-(dimethylamino)ethylimino)methyl]-4- nitrophenol} are tridentate Schiff-base ligands), have been synthesized and characterized by elemental analysis, IR and UV-Vis spectroscopy and single-crystal X-ray diffraction studies. All the complexes are square planar. Complex 1 crystallizes in the triclinic space group, P1?, with cell dimensions a = 8.0396(2), b = 9.0892(2), c = 12.9977(3) ?, α = 85.591(1), β = 84.198(1) and γ = 76.423(1), whereas complex 2 crystallizes in the orthorhombic space group, Pbca with cell dimensions a = 8.4615(4), b = 17.2708(11) and c = 25.8517(12) ?. Complex 3 crystallizes in the monoclinic space group, P21/n with cell dimensions a = 6.9550(3), b = 13.2257(7), c = 14.7755(6) ? and β = 102.697(3). Both HL1 and HL2 are capable of forming H bonds due to the presence of H atoms in their amine groups. On the other hand, HL3 cannot form H-bonds. The weak forces like H-bonding, lone paira?π and πa?π interactions lead to various supramolecular architectures in the complexes.
