Anion modulated structural variations in copper(II) complexes with a semicarbazone Schiff base: Synthesis, characterization and self assembly

作者：Das Mithun; Ghosh Biswa Nath; Rissanen Kari; Chattopadhyay Shouvik^*

来源：Polyhedron, 2014, 77: 103-114.

DOI：10.1016/j.poly.2014.03.027

• Schiff base
• Copper(II)
• Square pyramidal
• Stair-like polymer
• Octahedral

Two copper(II) complexes, [Cu(L)N-3](n) (1) and [Cu(HL)(2)](I-3)ClO4 (2), where HL = 2-pyridylaldehydesemicarbazone, have been prepared and characterized by elemental analysis, IR and UV-Vis spectroscopy and single crystal X-ray diffraction studies. Complex 1 crystallizes in monoclinic space group P2(1)/a, whereas, complex 2 crystallizes in triclinic space group P-1. Complex 1 is a stair-like coordination polymer with square pyramidal geometry of copper(II), whereas, complex 2 is a mononuclear cationic bis-ligand complex of octahedral copper(II). Lower coordination ability of tri-iodide or perchlorate compared to azide may be related with variations of the structures of the complexes.

• 出版日期2014-7-27