798541-74-9

Upstream product

• 1137627-14-5 [Ni(μ2-N[2-P(CHMe2)2-4-methylphenyl]2)]2 
• 694-53-1 phenylsilane 
• 775-12-2 diphenylsilane 
• 798541-70-5 [NiCl(N(2-P(CHMe₂-4-methylphenyl)2)2)] 
• 638-21-1 phenylphosphane 

Downstream Products

• 1137627-12-3 [(N(2-P(CHMe₂)2-4-MeC₆H₃)2)Ni(SiH₂Ph)] 
• 1137627-13-4 [(N(2-P(CHMe₂)2-4-MeC₆H₃)2)Ni(SiHPh₂)] 

Relevant academic research and scientific papers

Mild protocol for the synthesis of stable nickel complexes having primary and secondary silyl ligands

A mild protocol for the synthesis of (PNP)Ni(SiH2Ph) and (PNP)Ni(SiHPh2) (PNP- = N[2-P(CHMe2) 2-4-MeC6H3]2) stemming from the hydride complex (PNP)NiH is presented along with their corresponding solid state structures. The combination of preliminary reactivity and theoretical studies suggests these silyl ligands to be robust species due to the square-planar environment enforced by the pincer ancillary.

A dinuclear Ni(I) system having a diradical Ni2N2 diamond core resting state: Synthetic, structural, spectroscopic elucidation, and reductive bond splitting reactions

One-electron reduction of the square-planar nickel precursor (PNP)NiCl (1) (PNP- = N[2-P(CHMe2)2-4-methylphenyl] 2) with KC8 effects ligand reorganization of the pincer ligand to assemble a Ni(I) dimer, [Ni(μ2-PNP)]2 (2), containing a Ni2N2 core structure, as inferred by its solid-state X-ray structure. Solution magnetization measurements are consistent with a paramagnetic Ni(I) system likely undergoing a monomer ? dimer equilibrium. The room-temperature and 4 K solid-state X-band electron paramagnetic resonance (EPR) spectra display anisotropic signals. Low-temperature solid-state X-band EPR data at 4 K reveal rhombic values g z = 1.980(4), gx = 2. 380(4), and gy = 2.225(4), as well as a forbidden signal at g = 4.24 for the ΔMs = 2 half field transition, in accord with 2 having two weakly interacting metal centers. Utilizing an S = 1 model, full spin Hamiltonian simulation of the low-temperature EPR spectrum on the solid sample was achieved by applying a nonzero zero-field-splitting parameter (D = 0.001 cm-1), which is consistent with an S = 0 ground state with a very closely lying S = 1 state. Solid-state magnetization data also corroborate well with our solid-state EPR data and reveal weak antiferromagnetic behavior (J = -1.52(5) cm-1) over a 2-300 K temperature range at a field of 1 Tesla. Evidence for 2 being a masked "(PNP)Ni" scaffold originates from its reaction with N 2CPh2, which traps the Ni(I) monomer in the form of a T-shaped species, Ni(PNP=NNCPh2), a system that has been structurally characterized. The radical nature of complex 2, or its monomer component, is well manifested through the plethora of cooperative H-X-type bond cleavage reactions, providing the nickel(II) hydride (PNP)NiH and the corresponding rare functionalities -OH, -OCH3, -PHPh, and -B(catechol) integrated into the (PNP)Ni moiety in equal molar amounts. In addition to splitting H 2, compound 2 can also engage in homolytic X-X bond cleavage reactions of PhXXPh to form (PNP)Ni(XPh) (X = S or Se).