A new mononuclear Cd(II) complex CdL₂I₂ (L = 6-nitro-imidazo(1,2-a)pyridine) made up by a novel in situ reaction

ABSTRACT

A novel in situ cyclocondensation reaction of anp (anp = 2-amino-5-nitropyridine) and ethanol into L (L = 6-nitro-imidazo(1,2-a)pyridine) under solvothermal conditions has been observed for the first time. Crystal structure of a metal complex, CdL₂I₂ (1), has been obtained. Complex 1 was synthesized from a solvothermal reaction of anp with CdI₂ in anhydrous ethanol and water. Complex 1 crystallizes in orthorhombic space group Pnma with a = 13.662(9) Å, b = 16.734(11) Å, c = 8.767(5) Å. The structure of 1 shows mononuclear units. Weak hydrogen bonds and π···π stacking intermolecular interactions assemble units to form a 3-D supramolecular network of 1.

KEYWORDS:

• in situ reaction
• 2-amino-5-nitropyridine
• cadmium (II)

Funding

The authors gratefully acknowledge the financial support of the NSF of China (21201071, 61205213), the NSF of Anhui Province (1208085QB42), the Science and Technology Project of Huainan City (2013A4105), the Program for Innovative Research Team in Huainan Normal University, the Excellent Young Talents Program of Anhui Province(gxyqZD2016259, gxyqZD2016260), and the NSF of Education Department of Anhui Province (KJ2016A667).