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Anion mediated diversity in the nuclearity of nickel(II) complexes with a N2O donor Schiff base: Formation of a supra-molecular chain via Br center dot center dot center dot Br interactions

Bhattacharyya, Anik; Bhaumik, Prasanta Kumar; Jana, Partha LU and Chattopadhyay, Shouvik (2014) In Polyhedron 78. p.40-45
Abstract
Two nickel(II) complexes, [Ni(L)(2)] (1) and [Ni-2(mu(1,1)-N-3)(2)(L)(2)(DMSO)(2)] (2) [where HL = 3-(methyl-amino)propyliminomethyl-4-bromophenol, a tridentate Schiff base], have been synthesized and characterized by elemental analysis, IR, UV-Vis and fluorescence spectroscopy and single-crystal X-ray diffraction studies. The deprotonated tridentate Schiff base occupies three coordination sites of nickel(II) in each of the complexes. In the absence of any secondary coordinating anions, the octahedral geometry of nickel(II) in complex 1 is completed by the coordination of a second molecule of the tridentate Schiff base. On the other hand, in complex 2, the fourth coordination site of nickel(II) is occupied by an azide. A symmetry related... (More)
Two nickel(II) complexes, [Ni(L)(2)] (1) and [Ni-2(mu(1,1)-N-3)(2)(L)(2)(DMSO)(2)] (2) [where HL = 3-(methyl-amino)propyliminomethyl-4-bromophenol, a tridentate Schiff base], have been synthesized and characterized by elemental analysis, IR, UV-Vis and fluorescence spectroscopy and single-crystal X-ray diffraction studies. The deprotonated tridentate Schiff base occupies three coordination sites of nickel(II) in each of the complexes. In the absence of any secondary coordinating anions, the octahedral geometry of nickel(II) in complex 1 is completed by the coordination of a second molecule of the tridentate Schiff base. On the other hand, in complex 2, the fourth coordination site of nickel(II) is occupied by an azide. A symmetry related azide from a different molecule coordinates the fifth site of nickel(II), thereby forming a double end-on azide bridged centrosymmertric dimer. An oxygen from a DMSO molecule occupies the sixth coordination site of nickel(II) to complete its octahedral geometry. There are hydrogen bonding and C-H center dot center dot center dot pi interactions within the dinuclear moiety of complex 2. A one-dimensional chain along the a axis is produced in complex 1 via a Br center dot center dot center dot Br interaction. (C) 2014 Elsevier Ltd. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Nickel(II), Schiff base, End-on azide, Dinuclear, Br center dot center, dot center dot Br interaction
in
Polyhedron
volume
78
pages
40 - 45
publisher
Elsevier
external identifiers
  • wos:000337883800006
  • scopus:84900392619
ISSN
0277-5387
DOI
10.1016/j.poly.2014.03.023
language
English
LU publication?
yes
id
f1f36469-3992-4e7d-8264-b829ffa145f3 (old id 4608840)
date added to LUP
2014-09-04 10:28:32
date last changed
2017-09-03 04:13:05
@article{f1f36469-3992-4e7d-8264-b829ffa145f3,
  abstract     = {Two nickel(II) complexes, [Ni(L)(2)] (1) and [Ni-2(mu(1,1)-N-3)(2)(L)(2)(DMSO)(2)] (2) [where HL = 3-(methyl-amino)propyliminomethyl-4-bromophenol, a tridentate Schiff base], have been synthesized and characterized by elemental analysis, IR, UV-Vis and fluorescence spectroscopy and single-crystal X-ray diffraction studies. The deprotonated tridentate Schiff base occupies three coordination sites of nickel(II) in each of the complexes. In the absence of any secondary coordinating anions, the octahedral geometry of nickel(II) in complex 1 is completed by the coordination of a second molecule of the tridentate Schiff base. On the other hand, in complex 2, the fourth coordination site of nickel(II) is occupied by an azide. A symmetry related azide from a different molecule coordinates the fifth site of nickel(II), thereby forming a double end-on azide bridged centrosymmertric dimer. An oxygen from a DMSO molecule occupies the sixth coordination site of nickel(II) to complete its octahedral geometry. There are hydrogen bonding and C-H center dot center dot center dot pi interactions within the dinuclear moiety of complex 2. A one-dimensional chain along the a axis is produced in complex 1 via a Br center dot center dot center dot Br interaction. (C) 2014 Elsevier Ltd. All rights reserved.},
  author       = {Bhattacharyya, Anik and Bhaumik, Prasanta Kumar and Jana, Partha and Chattopadhyay, Shouvik},
  issn         = {0277-5387},
  keyword      = {Nickel(II),Schiff base,End-on azide,Dinuclear,Br center dot center,dot center dot Br interaction},
  language     = {eng},
  pages        = {40--45},
  publisher    = {Elsevier},
  series       = {Polyhedron},
  title        = {Anion mediated diversity in the nuclearity of nickel(II) complexes with a N2O donor Schiff base: Formation of a supra-molecular chain via Br center dot center dot center dot Br interactions},
  url          = {http://dx.doi.org/10.1016/j.poly.2014.03.023},
  volume       = {78},
  year         = {2014},
}