A 3-D Mn(II) complex containing N-isonicotinyl, N %26apos;,N %26apos;%26apos;-bis (hexamethylenyl) phosphoric triamide ligand: synthesis, structural characterization, and thermal studies

作者：Gholivand Khodayar^*; Rajabi Maryam; Molaei Foroogh; Mahzouni Hamid Reza; Farshadian Sedigheh

来源：Journal of Coordination Chemistry, 2013, 66(23): 4199-4210.

DOI：10.1080/00958972.2013.863879

• Mn(II) complex
• Phosphoric triamide
• Crystal structure
• 3-D Network
• Nano-sized particle

A new phosphoryl-containing ligand, N-isonicotinyl, N,N-bis(hexamethylenyl) phosphoric triamide (1), was synthesized and characterized using IR, H-1, C-13, and P-31 NMR and UV-vis spectroscopy. Reaction of 1 with MnCl2%26lt;bold%26gt;4%26lt;/bold%26gt;H2O led to the formation of Mn(II) complex with the formula {Mn[4-NC5H4C(O)NHP(O)(NC6H12)(2)](2)Cl-2}(n) (2). Crystal structures of 1 and 2 were determined by X-ray crystallography, which reveals that 2 is centrosymmetric with two phosphoryl oxygens, chloride and nitrogen in trans positions. Coordination of bridged bidentate 1 through oxygen of the phosphoryl and nitrogen of the pyridine afforded a 3-D network extended by coordinative bonds. Compound 2 and its nano-sized particles prepared by sonochemical method were characterized by IR spectroscopy, X-ray powder diffraction, and thermal analysis and exhibited paramagnetic behavior at room temperature. Crystalline mixture of Mn2P2O7 and Mn2P4O12 was identified as a thermolysis product of 2.

• 出版日期2013-12-10