The synthesis, structure, vibrational analysis and a comparative vibrational study in function of the structure and the metal-ligand bond strength are discussed for a series of Mn(II)-urea-halogenide complexes. Complex [MnCl2U] has been prepared and studied fur the first time. The single-crystal X-ray structure of the 1:6-bromide complex reveals the presence of octahedral [MnU6](2+) ions and bromide counterions. (C) 2000 Elsevier Science Ltd. All rights reserved.
Coordination of manganese(II): High spin complexes with urea