An article Dinuclear Silver(I) Nitrate Complexes with Bridging Bisphosphinomethanes: Argentophilicity and Luminescence WOS:000584110200001 published article about SPECTROSCOPIC PROPERTIES; MULTINUCLEAR SILVER(I); OPTICAL-PROPERTIES; CHARGE-TRANSFER; DESIGN; BIS(DIPHENYLPHOSPHINO)METHANE; MECHANISM; PHOSPHINE; LIGANDS in [Baranova, Kristina F.; Titov, Aleksei A.; Filippov, Oleg A.; Smol’yakov, Alexander F.; Shubina, Elena S.] Russian Acad Sci, AN Nesmeyanov Inst Organoelement Cpds, Vavilov Str 28, Moscow 119991, Russia; [Baranova, Kristina F.] Lomonosov Moscow State Univ, Fac Chem, 1-3 Leninskie Gory, Moscow 119991, Russia; [Filippov, Oleg A.] Russian Acad Sci, Shemyakin Ovchinnikov Inst Bioorgan Chem, Miklukho Maklaya St 16-10, Moscow 117997, Russia; [Averin, Alexey A.] Russian Acad Sci, AN Frumkin Inst Phys Chem & Electrochem, Leninsky Prosp 31-4, Moscow 199071, Russia in 2020.0, Cited 37.0. The Name is 3,5-Dimethyl-1H-pyrazole. Through research, I have a further understanding and discovery of 67-51-6. Name: 3,5-Dimethyl-1H-pyrazole
Two silver nitrate complexes with bisphosphines were obtained and characterized: [Ag(dcypm)](2)(NO3)(2) (1; dcypm = bis(dicyclohexylphosphino)methane) and [Ag(dppm)](2)(Me(2)Pz(H))(n)(NO3)(2) (n = 1, 2a; n = 2, 2b; dppm = bis(diphenylphosphino)methane, Me(2)Pz(H) = 3,5-dimethylpyrazole). The steric repulsions of bulky cyclohexyl substituents prevent additional ligand coordination to the silver atoms in 1. Compounds obtained feature the bimetallic eight-member cyclic core [AgPCP](2). The intramolecular argenthophilic interaction (d(Ag center dot center dot center dot Ag) = 2.981 angstrom) was observed in complex 1. In contrast, the coordination of pyrazole led to the elongation of Ag center dot center dot center dot Ag distance to 3.218(1) angstrom in 2a and 3.520 angstrom in 2b. Complexes 1 and 2a possess phosphorescence both in the solution and solid state. Time-dependent density-functional theory (TD-DFT) calculations demonstrate the origin of their different emission profile. In the case of 1, upon excitation, the electron leaves the Ag-P bonding orbital and locates on the intramolecular Ag center dot center dot center dot Ag bond (metal-centered character). Complex 2a at room temperature exhibits a phosphorescence originating from the (3)(M + LP+N)(LCT)-C-Ph state. At 77 K, the photoluminescence spectrum of complex 2a shows two bands of two different characters: (3)(M + LP+N)(LCT)-C-Ph and (LCPh)-L-3 transitions. The contribution of Ag atoms to the excited state in both complexes 2a and 2b decreased relative to 1 in agreement with the structural changes caused by pyrazole coordination.
Name: 3,5-Dimethyl-1H-pyrazole. About 3,5-Dimethyl-1H-pyrazole, If you have any questions, you can contact Baranova, KF; Titov, AA; Filippov, OA; Smol’yakov, AF; Averin, AA; Shubina, ES or concate me.
Reference:
Pyrazole – Wikipedia,
,Pyrazoles – an overview | ScienceDirect Topics