Synthesis, structures and oxygen atom transfer catalysis of oxo-bridged molybdenum(V) complexes with heterocyclic bidentate ligands (N,X) X=S, Se

作者: Xiaoli Ma , Carola Schulzke , Zhi Yang , Arne Ringe , Jörg Magull

DOI: 10.1016/J.POLY.2007.08.020

关键词: StereochemistryChemistryDenticityMolybdenumOxygen atomCatalysisCrystal structureSpectroscopyCrystallographyIsostructuralPhysical and Theoretical ChemistryInorganic chemistryMaterials Chemistry

摘要: The dinuclear μ-oxomolybdenum(V) complexes [Mo 2 O 3 (PyS) 4 ] ( 1 ), (PySe) ) and (4-CF -PymS) were obtained by similar reactions of the [MoO Cl (DME)] precursor with corresponding heterocyclic bidentate (N,X) ligands, X = S, Se, where PyS, PySe 4-CF -PymS are anions pyridine-2-thione, pyridine-2-selenolato 4-trifluoromethyl-2-pyrimidinthiol, respectively. All compounds characterized elemental analysis, IR, NMR, EI-MS spectroscopy X-ray diffraction. crystal structures – all include common 4+ core. Compounds isostructural. catalytic oxo-transfer properties molybdenum(V) studied use PPh in DMSO a considerably higher activity for thionato containing complex than its selenolato analogue .

参考文章(50)
Antonio Sousa-Pedrares, Maria Luz Durán, Jaime Romero, José Arturo García-Vázquez, Juan C. Monteagudo, Antonio Sousa, Jonathan R. Dilworth, Synthesis and characterization of ruthenium and osmium complexes of heterocyclic bidentate ligands (N,X), X=S, Se Inorganica Chimica Acta. ,vol. 359, pp. 863- 876 ,(2006) , 10.1016/J.ICA.2005.06.009
Akio Toshimitsu, Hiroto Owada, Sakae Uemura, Masaya Okano, Enone synthesis via α-pyridylseleno carbonyl compounds Tetrahedron Letters. ,vol. 23, pp. 2105- 2108 ,(1982) , 10.1016/S0040-4039(00)87273-1
João M Dias, Manuel E Than, Andreas Humm, Robert Huber, Gleb P Bourenkov, Hans D Bartunik, Sergey Bursakov, Juan Calvete, Jorge Caldeira, Carla Carneiro, José JG Moura, Isabel Moura, Maria J Romão, Crystal structure of the first dissimilatory nitrate reductase at 1.9 A solved by MAD methods. Structure. ,vol. 7, pp. 65- 79 ,(1999) , 10.1016/S0969-2126(99)80010-0
Akio Toshimitsu, Hiroto Owada, Keiji Terao, Sakae Uemura, Masaya Okano, Pyridylseleno group in organic synthesis. Part 4. Oxyseleniation of olefins using pyridine-2-selenenyl bromide as a selenium reagent and its utilization in the synthesis of 2-pyridyl vinylic selenides Journal of The Chemical Society-perkin Transactions 1. ,vol. 16, pp. 373- 378 ,(1985) , 10.1039/P19850000373
Jeffrey C Boyington, Vadim N Gladyshev, Sergei V Khangulov, Thressa C Stadtman, Peter D Sun, Crystal Structure of Formate Dehydrogenase H: Catalysis Involving Mo, Molybdopterin, Selenocysteine, and an Fe4S4 Cluster Science. ,vol. 275, pp. 1305- 1308 ,(1997) , 10.1126/SCIENCE.275.5304.1305
Xiaoli Ma, Kerstin Starke, Carola Schulzke, Hans-Georg Schmidt, Mathias Noltemeyer, Structural, Electrochemical, and Theoretical Investigations of New Thio- and Selenoether Complexes of Molybdenum and Tungsten European Journal of Inorganic Chemistry. ,vol. 2006, pp. 628- 637 ,(2006) , 10.1002/EJIC.200500698
Vernon C. Gibson, Terence P. Kee, Alan Shaw, New, improved syntheses of the group 6 oxyhalides, W(O)Cl4, W(O)2Cl2 and Mo(O)2Cl2 Polyhedron. ,vol. 7, pp. 579- 580 ,(1988) , 10.1016/S0277-5387(00)86336-6
G. M. Sheldrick, Phase annealing in SHELX-90: direct methods for larger structures Acta Crystallographica Section A Foundations of Crystallography. ,vol. 46, pp. 467- 473 ,(1990) , 10.1107/S0108767390000277