TY - JOUR
T1 - Mechano-chemical syntheses of new cobalt(II) complexes of alkyl 2-(pyridine-2yl-methylene) hydrazinecarboxylates
T2 - Crystal structures, spectroscopic and photoluminescence properties
AU - Sathiyakumar, Subramani
AU - Selvam, Pitchai
AU - Antharjanam, Sudhadevi
AU - Hakkim, Furuck Lukmanul
AU - Srinivasan, Krishnan
AU - Harrison, William T.A.
N1 - Funding Information:
This work is funded by DST-SERB , India under EMEQ Scheme ( SB/EMEQ-164/2014 ). Appendix A
Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2020/4/5
Y1 - 2020/4/5
N2 - New cobalt (II) complexes of general formula [Co(L) (NO3) (H2O)2]·NO3 (L = methyl 2-(pyridine-2yl-methylene) hydrazinecarboxylate, C8H9N3O2 (2-PYMC) (1) and ethyl 2-(pyridine-2yl-methylene) hydrazinecarboxylate, C9H11N3O2 (2-PYEC) (2), have been synthesized and characterized by elemental analysis, UV–vis, IR, and photoluminescence measurements. The crystal structures of 1 and 2 reveal the presence of CoN2O5 pentagonal-bipyramidal coordination polyhedra in each complex: the basal plane consists of an N, N, O-tridentate 2-PYMC/2-PYEC ligand and a chelating nitrate anion and the axial sites are occupied by water molecules. The crystal structures are consolidated by O–H⋯O and C–H⋯O hydrogen bonds.
AB - New cobalt (II) complexes of general formula [Co(L) (NO3) (H2O)2]·NO3 (L = methyl 2-(pyridine-2yl-methylene) hydrazinecarboxylate, C8H9N3O2 (2-PYMC) (1) and ethyl 2-(pyridine-2yl-methylene) hydrazinecarboxylate, C9H11N3O2 (2-PYEC) (2), have been synthesized and characterized by elemental analysis, UV–vis, IR, and photoluminescence measurements. The crystal structures of 1 and 2 reveal the presence of CoN2O5 pentagonal-bipyramidal coordination polyhedra in each complex: the basal plane consists of an N, N, O-tridentate 2-PYMC/2-PYEC ligand and a chelating nitrate anion and the axial sites are occupied by water molecules. The crystal structures are consolidated by O–H⋯O and C–H⋯O hydrogen bonds.
KW - Crystal structure
KW - Hydrazinecarboxylate
KW - Metal complex
KW - Photoluminescence
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U2 - 10.1016/j.molstruc.2019.127666
DO - 10.1016/j.molstruc.2019.127666
M3 - Article
AN - SCOPUS:85077454713
SN - 0022-2860
VL - 1205
JO - Journal of Molecular Structure
JF - Journal of Molecular Structure
M1 - 127666
ER -