- 作者: 陳俊廷 ; 陳其珍 ; 林素卿 等
- 作者服務機構: 台灣大學化學系
- 中文摘要: The /sup 15/N NMR spectra of the complexes Os/sub 3/(CO)/sub 10/(.mu./sub 2/-CONHPr/sup i/)(.mu./sub 2/-C=NHR)(1a, R=Pr; 1b, R=CH/sub 2/Ph) and Os/sub 3/(CO)/sub 9/(NH/sub 2/Pr/sup i/)(.mu./sub 2/-CONHPr/sup i/)(.mu./sub 2/- C=NHR) (2a, R=Pr; 2b, R= CH/sub 2/Ph) are studied by using the /sup 1/H detected (inverse) /sup 1/H-/sup 15/N correlated spectroscopy. The /sup 15/N chemical shifts and the /sup 1/H-/sup 15/N coupling constants fall in characteristic regions for each of the coordinated amine , aminocarbyne, and carboxamido ligands and these values are related to their bonding types. The NMR data are discussed in terms of the influence of the paramagnetic term which is the major factor determining the chemical shifts. A comparison is made to understand the /sup 15/N chemical- shift differences between the coordinated nitrogen- containing ligands and the corresponding free organic molecules.
- 英文摘要: --
- 中文關鍵字: Osmium Cluster; Aminocarbyne; Carboxamido Complex; Chemical Shift
- 英文關鍵字: 鋨金屬簇;胺甲醯基;氮羰基錯合物;化學位移