Bidentate and terdentate (P-N-S) complexes of a new thioether azine phosphine Z,E-PPh₂CH₂C(Bu^t)=N-N=C(Me)CH₂S(C₆H₄Me-4) with molybdenum, tungsten, or platinum

Coordination chemistry of dinucleating P2N2S ligands: preparation and characterization of cationic palladium complexes

“…These 1 H chemical shifts are very similar to those of the amine-imine-thioether tBuL 1 , reported previously. The same is true for the 13 C NMR data. As expected, however, the signals for the methylene carbon atoms denoted C 5 and C 6 appear as doublets.…”

“…The 1 H NMR and 13 C NMR spectral data for the dipalladium complex 4 lack the signals of one tBu group, which confirms the presence of the thiophenolate unit. The coordination of the phosphane functions is supported by the 31 P NMR spectrum by the down field shift of the 31 P NMR resonance from d = −18.3 in tBuL 3 to d = 48.95 in 4.…”

“…The complexes were further characterized by 1 H and 31 P NMR spectroscopy. 13 C NMR spectroscopic data were recorded only for tBuL 3 1). These 1 H chemical shifts are very similar to those of the amine-imine-thioether tBuL 1 , reported previously.…”

“…Unfortunately, multidentate ligands with mixed N/P/S donor sets are not readily available and often require multistep reactions. [10][11][12][13] This is true in particular for dinucleating thiophenolate ligands. To the best of our knowledge, there are no previous examples of dinucleating thiophenolate-based systems containing mixed N/P/S donor sets.…”

Novel chemistry of rhodium induced by a new type of ligand, a phosphino-N-benzoylhydrazone: crystal structure of [Rh (CO){C(CO2Me)CHCO2 Me}{P PPh2CH[C(CO 2Me)C (CO2 Me)]C -(But)N –N C(Ph)O }]

“…2 The compound Z-PPh 2 CH 2 C(Bu t )᎐ ᎐ NNH 2 and its derivatives have a very extensive chemistry. [2][3][4][5][6][7][8][9][10][11][12] Hydrazides of carboxylic acids, viz. of type RCONHNH 2 , are readily prepared and available and we reasoned that such hydrazides might also effect acid-catalysed displacement of…”