Synthesis, crystal structures and magnetic properties of two iron (II) tris(pyridyl)phosphine selenides complexes. (4th May 2018)

• Record Type: Journal Article
• Authors: Hu, Xuecheng; Sun, Tingquan; Zheng, Chunyang
• Is Part Of: Phosphorus, sulfur, and silicon and the related elements. Volume 193:Number 5(2018)
• Page Start: 300
• Page End: 305
• Publication Date: 2018-05-04
• Subjects: Selenide -- Iron(II) mononuclear metal complexes -- magnetic -- spin transition; Sulfur compounds -- Periodicals; Organosulfur compounds -- Periodicals; Phosphorus compounds -- Periodicals; Organophosphorus compounds -- Periodicals; Silicon compounds -- Periodicals; Organosilicon compounds -- Periodicals; 546
• DOI: 10.1080/10426507.2017.1417295
• Languages: English
• ISSNs: 1042-6507

Abstract

ABSTRACT: We reported the synthesis of tris(pyridyl)phosphine selenide (TppSe ) and tris(4-methylpyridin-2-yl)phosphine selenide (MeTppSe ), which were prepared by a simple and straightforward one-pot method with red phosphorus in a KOH/DMSO suspension, and treatment of resulted phosphines with selenium in hot toluene. These compounds were characterized by mass spectroscopy, 1 H, 13 C and 31 P NMR spectroscopies and the structure of MeTppSe was characterised by a single-crystal X-ray diffraction. Furthermore, The reactions of selenides with Fe(ClO4 )2 ·6H2 O afforded two new iron(II) mononuclear metal complexes [Fe(TppSe)2 ][ClO4 ]2 ·3DMF (1 ) and [Fe(MeTppSe)2 ][ClO4 ]2 ·2DMF (2 ). Detailed structural analyses and magnetic susceptibility measurements confirm no spin transition from low-spin to the high-spin state between 2 and 300 K in two iron(II) complexes. GRAPHICAL ABSTRACT: