24035-09-4

Upstream product

• 15617-18-2 bis(benzonitrile)palladium(II) dichloride 
• 19287-90-2 1,2-bis(diphenylphosphino)-1,2-dicarba-closo-dodecaborane 
• 21264-30-2 dichloro bis(acetonitrile) palladium(II) 
• 12107-56-1 dichloro(cycloocta-1,5-diene)palladium (II) 

Downstream Products

• 104462-47-7 [Pd{(PPh₂)₂C₂B₁₀H₁₀}(S₂C₂B₁₀H₁₀)] 

Relevant academic research and scientific papers

Synthesis and crystal structure of four Pd(II) complexes containing nido or closo carborane diphosphine ligands

Three Pd(II) complexes [Pd2(μ-Cl)2{7,8-(PPh2)2-7,8-C2B9H10}2] · 0.25CH2Cl2 (1), [Pd{7,8-(PPh2)2-7,8-C2B9H10}2] · 4CHCl3 (2) and [PdCl2(1,2-(PPh2)2-1,2-C2B10H10)] (3) have been synthesized by the reactions of 1,2-(PPh2)2-1,2-C2B10H10 with PdCl2 in acetonitrile, cyanophenyl and dichloromethane, respectively. A fourth complex, [PdI2(1,2-(PPh2)2-1,2-C2B10H10)] (4), was obtained by a ligand exchange reaction through the substitution of the Cl- of complex 3 with I-. All four complexes have been characterized by elemental analysis, FT-IR, 1H and 13C NMR spectroscopy and X-ray structure determination. Single crystal X-ray determination showed that the carborane cage, nido for 1, 2 and closo for 3, 4, was coordinated bidentately to the Pd atom through the two P atoms, and the geometry at the Pd atom was square-planar in all the complexes.

Revising the [PdCl2(1,2-(PPh2)2-1,2-C2B 10H10)] synthesis and comparison of its behavior with [PdCl2(1,2-(PiPr2)2-1,2-C 2B10H10)]. Crystal structure of [PdCl2(1,2-(PPh2)2-1,2-C2B 10H10)]

Two methods for the revised synthesis of [PdCl2(1,2-(PPh2)2-1,2-C2B 10H10)] are described. They differ on the reagent complex, to say 1,2-bis(diphenylphosphino)-1,2-dicarba-closo-dodecaborane was mixed with [PdCl2(cod)] or [PdCl2(PhCN)] in non-nucleophilic solvents. The structure of [PdCl2(1,2-(PPh2)2-1,2-C2B10H 10)] was determined by single-crystal X-ray study. The carborane cage is coordinated bidentately through the P atoms to the Pd(II) ion, the remaining two positions are occupied by two chloride ions which are mutually cis. Overall, the coordination about the metal can be described as a slightly distorted square-planar. The reaction of 1,2-bis(diisopropylphosphino)-1,2-dicarba-closo-dodecaborane in dichloromethane produced mostly a compound with similar formula, however some deboronation took place and [Pd2(μ-Cl)2{7,8-(PiPr2) 2-7,8-C2B9H10}2] was also produced. Larger amounts of this dinuclear complex were obtained when the closo species was refluxed for few minutes in a mild nucleophilic solvent.

Structural and photophysical study on heterobimetallic complexes with d8-d10 interactions supported by carborane ligands: Theoretical analysis of the emissive behaviour

Heterobimetallic complexes of formula [M{(PPh2) 2C2B9H10}(S2C 2B10H10)M'(PPh3)] (M=Pd, Pt; M'=Au, Ag, Cu) and [Ni{(PPh2)2C2B9H 10}(S2C2B10H10) Au(PPh3)] were obtained from the reaction of [M{(PPh 2)2C2B10H10}(S 2C2B10H10)] (M=Pd, Pt) with [M'(PPh3)]+ (M'=Au, Ag, Cu) or by one-pot synthesis from [(SH)2C2B10H10], (PPh 2)2C2B10H10, NiCl 2×6 H2O, and [Au(PPh3)]+. They display d8-d10 intermetallic interactions and emit red light in the solid state at 77aK. Theoretical studies on [M{(PPh 2)2C2B9H10}(S 2C2B10H10)Au(PPh3)] (M=Pd, Pt, Ni) attribute the luminescence to ligand (thiolate, L)-to- P2-M-S2 (ML') charge-transfer (LML'CT) transitions for M=Pt and to metal (M)-to- P2-M-S 2 (ML') charge-transfer (MML′CT) transitions for M=Ni, Pd. A family of red emitters of formula [M{(PPh2)2C 2B9H10}(S2C2B 10H10)M′(PPh3)] (M=Pd, Pt; M′=Au, Ag, Cu) and [Ni{(PPh2)2C2B9H 10}(S2C2B10H10) Au(PPh3)] (see figure) was synthesised. Theoretical studies on [M{(PPh2)2C2B9H10}(S 2C2B10H10)Au(PPh3)] (M=Pd, Pt, Ni) attribute the luminescence to ligand (thiolate, L)-to- P2-M-S2 group (ML′) charge-transfer (LML′CT) transitions for M=Pt and to metal (M)-to- P2-M-S2 group (ML′) charge-transfer (MML′CT) transitions for M=Ni, Pd.