787608-70-2Relevant academic research and scientific papers
Aurophilic towards H-bonding interactions in phosphine-pyrazolato-gold(I) complexes: Luminescence studies and crystal structure of {3,5-bis-[4-(octyloxy) phenyl]-1H-pyrazolato-κN1}(triphenylphosphine)gold-{3,5-bis-[4- (octyloxy)phenyl]-1H-pyrazole} ([Au(pzop2)(PPh3)] ·(Hpzop2))
Ovejero, Paloma,Cano, Mercedes,Campo, Jose A.,Heras, Jose V.,Laguna, Antonio,Crespo, Olga,Pinilla, Elena,Torres, M. Rosario
, p. 2057 - 2065 (2004)
Compounds [{Au(pzR2)(PPh3)2} ] (pz R2 = 3,5-disubstituted pyrazolato; R = BuOC6H4 (bp), 1; R = C8H17OC6H4 (op), 2; R = C6H13OC6H4 (hp), 3) were easily obtained by reaction of [Au(NO3)(PPh3)] and the corresponding pyrazolato ligand. They exhibit similar NMR patterns, their ESI-MS or FAB-MS data being in agreement with a monomeric molecular formulation [Au(pzR2)(PPh3)]. By contrast, 1 crystallizes as the dimer [{Au(pzR2}(PPh3)}2] and exhibits aurophilic Au ... Au contacts, while crystallization of 2 in CH2Cl 2/ hexane gives rise to compound 4, [Au(pzop2)(PPh 3)] · (Hpzop2). The X-ray structure of 4 was solved, showing a H-bond interaction between the monomer of 2 and Hpz op2. Reactions between [{Au(pzR2)(PPh3)} 2] and their corresponding 1H-pyrazole (HpzR2) were also explored. Compounds 1-3 exhibit luminescence in the solid state. Their emission spectra are reported and analyzed.
