Dibromomanganese(II) complexes with hexamethylphosphoramide and phenylphosphonic bis(diamide) ligands

Abstract

Tetrahedral dibromomanganese(II) complexes having formulas [MnBr₂{O = PR(NMe₂)₂}₂] (R = NMe₂ (1); Ph (2)) were isolated and characterized by single crystal X-ray diffraction. [MnBr₂{O = P(NMe₂)₃}₂] (1) crystallizes in the monoclinic C2/c space group. The asymmetric unit contains one half of the molecule with the Mn(II) atom in a distorted tetrahedral coordination. The intermolecular network of this coordination compound was studied by generating and inspecting its Hirshfeld surface, while the weak intramolecular hydrogen bonds were investigated computationally by AIM analysis in the gas phase and in solution. The Hirshfeld analysis was extended to the related [MnBr₂{O = PPh(NMe₂)₂}₂] complex (2).

Keywords:

• Manganese(II)
• tetrahedral complexes
• phosphoramide ligands
• phenylphosphonic diamide ligands
• crystal structures
• hydrogen bonds

Acknowledgment

CACTI (University of Vigo) is gratefully acknowledged for X-ray data collection.

Disclosure statement

No potential conflict of interest was reported by the author(s).