TY - JOUR
T1 - Mechanochemical syntheses, crystal structures, and photo-luminescent properties of a new hydrazone and its nickel and cadmium complexes
AU - Sathiyakumar, Subramani
AU - Selvam, Pitchai
AU - Hakkim, Faruck Lukmanul
AU - Srinivasan, Krishnan
AU - Harrison, William T.A.
N1 - Publisher Copyright:
© 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2018/11/2
Y1 - 2018/11/2
N2 - A new hydrazone, ethyl Z-2-(pyridine-2yl-methylene)hydrazinecarboxylate (C 9 H 11 N 3 O 2 ; Hpyec) and its metal complexes bis(ethyl Z-2-(pyridine-2yl-methylene)hydrazinecarboxylate)nickel(II) monohydrate, [Ni(pyec) 2 ]·H 2 O (1) and bis(acetato)(ethyl Z-2-(pyridine-2yl-methylene)hydrazinecarboxylate)cadmium(II), [Cd(Hpyec)(CH 3 COO) 2 ] (2), have been prepared by mechanochemical syntheses and characterized by elemental analysis, UV–vis, IR and NMR spectroscopies, TG-DTA, and solid state emission techniques. The X-ray single crystal structures of both complexes were determined. In 1, the Ni 2+ ion is coordinated by two N,N,O-tridentate anionic ligands to generate a distorted cis-NiO 2 N 4 octahedron. In 2, the cadmium ion is seven-coordinate by one neutral N,N,O-tridentate ligand and two chelating acetate ions to generate a very-distorted CdN 2 O 5 pentagonal bipyramid with the Hpyec atoms occupying both axial and one equatorial site. Crystal data: 1, C 18 H 22 N 6 NiO 5 , M r = 461.12, monoclinic, P2 1 /c, a = 10.8759(3) Å, b = 11.7055(4) Å, c = 16.8424(5) Å, β = 108.583(1)°, V = 2032.38(11) Å 3 , Z = 4, R(F) = 0.023, wR(F 2 ) = 0.065; 2, C 13 H 17 CdN 3 O 6 , M r = 423.69, monoclinic, Cc, a = 13.0215(10) Å, b = 15.8104(11) Å, c = 7.99(6) Å, β = 96.692(2)°, V = 1621.7(2) Å 3 , Z = 4, R(F) = 0.017, wR(F 2 ) = 0.038.
AB - A new hydrazone, ethyl Z-2-(pyridine-2yl-methylene)hydrazinecarboxylate (C 9 H 11 N 3 O 2 ; Hpyec) and its metal complexes bis(ethyl Z-2-(pyridine-2yl-methylene)hydrazinecarboxylate)nickel(II) monohydrate, [Ni(pyec) 2 ]·H 2 O (1) and bis(acetato)(ethyl Z-2-(pyridine-2yl-methylene)hydrazinecarboxylate)cadmium(II), [Cd(Hpyec)(CH 3 COO) 2 ] (2), have been prepared by mechanochemical syntheses and characterized by elemental analysis, UV–vis, IR and NMR spectroscopies, TG-DTA, and solid state emission techniques. The X-ray single crystal structures of both complexes were determined. In 1, the Ni 2+ ion is coordinated by two N,N,O-tridentate anionic ligands to generate a distorted cis-NiO 2 N 4 octahedron. In 2, the cadmium ion is seven-coordinate by one neutral N,N,O-tridentate ligand and two chelating acetate ions to generate a very-distorted CdN 2 O 5 pentagonal bipyramid with the Hpyec atoms occupying both axial and one equatorial site. Crystal data: 1, C 18 H 22 N 6 NiO 5 , M r = 461.12, monoclinic, P2 1 /c, a = 10.8759(3) Å, b = 11.7055(4) Å, c = 16.8424(5) Å, β = 108.583(1)°, V = 2032.38(11) Å 3 , Z = 4, R(F) = 0.023, wR(F 2 ) = 0.065; 2, C 13 H 17 CdN 3 O 6 , M r = 423.69, monoclinic, Cc, a = 13.0215(10) Å, b = 15.8104(11) Å, c = 7.99(6) Å, β = 96.692(2)°, V = 1621.7(2) Å 3 , Z = 4, R(F) = 0.017, wR(F 2 ) = 0.038.
KW - Green synthesis
KW - crystal structures
KW - emission study
KW - hydrazone
KW - metal complexes
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U2 - 10.1080/00958972.2018.1519553
DO - 10.1080/00958972.2018.1519553
M3 - Article
AN - SCOPUS:85055682009
SN - 0095-8972
VL - 71
SP - 3521
EP - 3533
JO - Journal of Coordination Chemistry
JF - Journal of Coordination Chemistry
IS - 21
ER -