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61.
Nesterov DS Kokozay VN Dyakonenko VV Shishkin OV Jezierska J Ozarowski A Kirillov AM Kopylovich MN Pombeiro AJ 《Chemical communications (Cambridge, England)》2006,(44):4605-4607
An unprecedented hexanuclear heterotrimetallic Fe/Cu/Co complex bearing two Cu(mu-O)2Co(mu-O)2Fe cores is easily prepared by self-assembly and acts as a remarkable catalyst for the peroxidative oxidation of cycloalkanes under mild conditions. 相似文献
62.
Viktoriya Poterya Michal Frník Udo Buck David Bonhommeau Nadine Halberstadt 《International journal of mass spectrometry》2009,280(1-3):78
The fragmentation of the small Xen n=2−5 clusters following 70 eV electron impact ionization has been investigated in a size selective experiment and simulated using non-adiabatic dynamics. The experimental results show that the clusters strongly fragment to yield monomer Xe+ (more than 90%) and dimer Xe2+ fragments (the remaining few percent). Trimer Xe3+ fragments first occur from the neutral pentamers Xe5 in a very low yield of approximately 0.3%. The present results are compared with the previous ones for Kr and Ar clusters. It is shown that the Xe and Kr clusters exhibit a qualitatively similar behavior with a strong propensity for monomer fragments, while in the Ar case dimers prevail. The theoretical calculations also reveal a strong fragmentation to the dimer and monomer fragments. However, the dimer Rg2+ is predicted to be the major product for all rare gases (Rg ≡ Ar, Kr, Xe). Possible reasons for the discrepancy between theory and experiment are discussed. 相似文献