The Synthesis of Novel Isoindoline Nitroxides Bearing Water-Solubilising Functionality
作者:Kathryn E. Fairfull-Smith、Farina Brackmann、Steven E. Bottle
DOI:10.1002/ejoc.200801255
日期:——
A range of novel tetramethyl- and tetraethylisoindolinenitroxides, possessing aryl-linked carboxylic acids, amines, alcohols and phosphonic acids were prepared. Notably, the chemistry established for the aromatic dibromination of the tetramethylisoindolines was not easily transferred to the corresponding tetraethylisoindoline system. Instead, various tetraethylisoindoline analogues were accessed by
Conformationally Unambiguous Spin Labeling for Distance Measurements
作者:Muhammad Sajid、Gunnar Jeschke、Michael Wiebcke、Adelheid Godt
DOI:10.1002/chem.200902162
日期:2009.12.7
about molecular structure: Measurements of interspin distances through double electron–electron resonance (DEER) experiments allow information to be gained about the structure of molecules (see figure). The less variability in the orientation of the NO axis of nitroxyl spinlabels with respect to the labeled molecule, the smaller the distribution of the interspin distance, and thus the better the conclusion