280124-39-2

Basic information

• Product Name: Pd[Ph₂P(O)NP(Se)Ph₂-Se]2(1,2-diaminocyclohexane)
• CAS NO: 280124-39-2
• Molecular Weight: 1267.94
• Mol File: 280124-39-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Pd[Ph₂P(O)NP(Se)Ph₂-Se]2(1,2-diaminocyclohexane)(CAS DataBase Reference)
• NIST Chemistry Reference: Pd[Ph₂P(O)NP(Se)Ph₂-Se]2(1,2-diaminocyclohexane)(280124-39-2)
• EPA Substance Registry System: Pd[Ph₂P(O)NP(Se)Ph₂-Se]2(1,2-diaminocyclohexane)(280124-39-2)

Safety Data

• Hazardous Substances Data: 280124-39-2(Hazardous Substances Data)

Upstream product

• 38780-40-4 {(1R,2R)-cyclohexane-1,2-diamine}dichloridoplatinum(II) 

Relevant articles and documents

New E-unidentate [Ph2P(O)NP(E)Ph2]- (E = S or Se) complexes of palladium(II) and platinum(II)

Metathesis of the monochloro metal(II) complexes [MCl(dien)]Cl (M = Pd or Pt; dien = diethylenetriamine) with K[Ph2P(O)-NP(E)Ph2] (E = S or Se) or K[Ph2P(O)NPPh2] (prepared in situ from Ph2P(O)NHPPh2/KOBu(t)) in methanol gave the cationic, mononuclear compounds [M{Ph2P(O)NP(E)Ph2-E}(dien)]+ or [M{Ph2P(O)NPPh2-P}(dien)]+, isolated as their hexafluorophosphate salts. Ligand substitution reactions of the dichlorometal(II) precursors [MCl2(N ~ N)] (M = Pd or Pt; N ~ N = ethane-1,2-diamine, 1,2-diaminocyclohexane) with K[Ph2P(O)NP(E)Ph2] or K[Ph2P(O)NPPh2] gave the neutral bis substituted compounds [M{Ph2P(O)NP(E)-Ph2-E}2(N ~ N)] or [M{Ph2P(O)NPPh2-P}2(N ~ N)] in high yields (63-89%). Reaction of the unsymmetrical palladium(II) compound [PdCl2(ampy)] (ampy = 2-aminomethylpyridine) with K[Ph2P(O)NP(E)Ph2] gave [Pd{Ph2P(O)NP(E)Ph2-E}2(ampy)], analogous to the recently described compound [Pd{Ph2P(O)NP(E)Ph2-E}2(en)], in which both [Ph2P(O)NP(E)Ph2]- ligands are exclusively Emonodentate bound. In contrast, transmetallation of K [Ph2P(O)NP(E)Ph2] with [PdCl2(tmeda)] (tmeda = N,N,N',N'-tetramethylethylenediamine) gave only the O,E-chelate monocationic complexes [Pd{Ph2P(O)NP(E)Ph2-O,E}(tmeda)]PF6 and not [Pd{Ph2P(O)-NP(E)Ph2-E}2(tmeda)]. Under similar reaction conditions the symmetrical anions [Ph2P(E)NP(E)Ph2]- (E = S or Se) gave, without exception, the known bis homoleptic complexes [M{Ph2P(E)NP(E)Ph2-E,E'}2] (M = Pd or Pt) with displacement of all chloride and amine ligands. All new compounds have been characterised by a combination of multinuclear NMR (1H, 31P{1H}, 195Pt{1H}), IR spectroscopy and elemental analyses. Furthermore, the X-ray crystal structures of five compounds have been determined and reveal a range of intermolecular and intramolecular hydrogen bonding contacts. There is also evidence for π-delocalisation within the E-P-N-P-O and P-N-P-O backbones of the E-ligating or O,E-chelating ligand. (C) 2000 Elsevier Science Ltd.