BISMUTH-HALIDE BOND ACTIVATION BY ORGAN OPLATINUM (II) COMPLEXES

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Nabavizadeh S.Masoud

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Seminar Paper

Paper Information

Seminar: IRANIAN CHEMISTRY CONGRESS
Year:2013 | Issue:16

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Title

BISMUTH-HALIDE BOND ACTIVATION BY ORGAN OPLATINUM (II) COMPLEXES

Author(s)

Nabavizadeh S.Masoud | Issue Writer Certificate

Keywords

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Abstract

THE ORGAN OPLATINUM (IV) COMPLEXES [PT(X)2ME2(TBU2BPY)] AND [PTME(X)2(PPY)PPH3] (TBU2BPY = 4,4-DI-TERTBUTYL-2,2-BIPYRIDINE, PPY = DEPROTONATED 2–PHENYLPYRIDINE AND X = CL, BR, I) ARE SYNTHESIZED BY THE REACTION OF [PTME2(TBU2BPY)] AND [PTME(PPY)PPH3] WITH BISMUTH TRIHALIDES AS A SOURCE OF HALIDE INSTEAD OF NO FAVORABLE REAGENTS X2. THE REACTION OF [PTME(PPY)PPH3] WITH BII3 WAS MONITORED USING UV-VIS SPECTROSCOPY AND A MECHANISM FOR ACTIVATION OF BI-X BONDS IS PROPOSED. A THEORETICAL STUDY IS PRESENTED AND SHOWN THAT THE OXIDATIVE ADDITION OF EITHER OF BIX3 TO THE PT(II) COMPLEXES IS ENDERGONIC FOR ALL BISMUTH HALIDES.IN A COMPARATIVE WORK, THE REACTION [PTME2(P–P)] COMPLEXES, P-P=DPPM OR DPPE, WITH BISMUTH TRIHALIDES WAS STUDIED AND PROPOSED TO PROCEED THROUGH BISMUTH–HALIDE OXIDATIVE ADDITION AND BISMUTH–CARBON REDUCTIVE ELIMINATION REACTIONS TO YIELD A MIXTURE OF THE PLATINUM (II) COMPLEXES [PTMEX(P–P)] AND [PT(X)2(P–P)]. THESE REACTIONS, WHICH ARE THE FIRST EXAMPLES OF ADDITION OF BISMUTH TRIHALIDES TO ORGAN OPLATINUM (II) COMPLEXES, WERE MONITORED USING 31P NMR AND UV-VIS SPECTROSCOPY AND A MECHANISM IS PROPOSED FOR THE REACTION. THE NATURE OF HALIDE HAS AN EFFECT ON THE RATES OF OXIDATIVE ADDITION OF BIX3 TO PT (II) COMPLEXES; THE PROCESS BECOMES SLOWER AS THE HALIDE BECOMES LARGER.

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APA: Copy

Nabavizadeh, S.Masoud. (2013). BISMUTH-HALIDE BOND ACTIVATION BY ORGAN OPLATINUM (II) COMPLEXES. IRANIAN CHEMISTRY CONGRESS. SID. https://sid.ir/paper/914466/en

Vancouver: Copy

Nabavizadeh S.Masoud. BISMUTH-HALIDE BOND ACTIVATION BY ORGAN OPLATINUM (II) COMPLEXES. 2013. Available from: https://sid.ir/paper/914466/en

IEEE: Copy

S.Masoud Nabavizadeh, “BISMUTH-HALIDE BOND ACTIVATION BY ORGAN OPLATINUM (II) COMPLEXES,” presented at the IRANIAN CHEMISTRY CONGRESS. 2013, [Online]. Available: https://sid.ir/paper/914466/en

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