Isolation of a new anion, [CdBr4(C7H5O2)]3 −: Synthesis, single crystal X-ray structure determination and DFT calculations of [Co(en)3][CdBr4(C7H5O2)]·H2O

A new anion [CdBr4(C7H5O2)]3 −, where C7H5O2 = benzoate, has been isolated for the first time in the form of complex salt [Co(en)3] [CdBr4(C7H5O2)]·H2O(1). This is the first example where Cd(II) centre is coordinated by both inorganic and organic ligands and existing as discrete unit. The complex salt is characterized by spectroscopic techniques and single crystal X-ray crystallography. The formation of complex salt is also supported by DFT calculations.