Klein, M; Sundermeyer, J in [Klein, Marius; Sundermeyer, Joerg] Philipps Univ Marburg, Fachbereich Chem & Wissensch, Zentrum Mat, D-35043 Marburg, Germany published Modular Design Strategy toward Second-Generation Tridentate Carbodiphosphorane N,C,N Ligands with a Central Four-Electron Carbon Donor Motif and Their Complexes in 2021.0, Cited 67.0. SDS of cas: 67-51-6. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6.
The reaction of sym-bis(P-chlorodiphenyl)-carbodiphosphorane (1) with difunctional nucleophiles leads to carbodiphosphoranes carrying two additional chelating N-donor functionalities. A proof of concept is demonstrated by the synthesis and characterization of sym-bis(3,5-dimethyl-1H-pyrazol-1-yl)-carbodiphosphorane (CDP((3,5-Me)Pz)(2), 2) and sym-bis(pyridin-2-yloxy)carbodiphosphorane (CDP(O-Py-2)(2), 3). Due to their superbasic central two-/four-electron carbon donor functionality, these neutral ligands are electronically flexible to act as neutral six-or eight-electron donors, as pincer ligand templates, or as two geminally metal bridging ligands. Their potential to form monoand dinuclear complexes involving two 6-ring or two 5-ring N,C-chelate ring motives has been explored. Complexes of 2 and 3 with fac-[M(CO)(3)] fragments (ls d(6); M = Cr, Mo, W) were used as spectroscopic probes. They reveal a strong sigma-donor and potential pi-donor ability of the central carbon donor pushing electron density for enhanced M-CO back-bonding into the metal d orbitals. DFT calculations consolidate this observation. Dinuclear and multinuclear d(10) Cu(I) complexes have been formed and structurally investigated upon treating these CDP ligands 2 and 3 with CuX (X = Cl, Br, I).
SDS of cas: 67-51-6. Bye, fridends, I hope you can learn more about C5H8N2, If you have any questions, you can browse other blog as well. See you lster.
Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics