ACCEPTOR NUMBER - QUANTITATIVE EMPIRICAL PARAMETER FOR ELECTROPHILIC PROPERTIES OF SOLVENTS
ACCEPTOR NUMBER - QUANTITATIVE EMPIRICAL PARAMETER FOR ELECTROPHILIC PROPERTIES OF SOLVENTS
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DOI：
10.1007/bf00913599
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发表时间：
1975-01-01
影响因子：
1.8
通讯作者：
GERGER, W
中科院分区：
文献类型：
--
作者：
MAYER, U;GUTMANN, V;GERGER, W
本文用~（31）P-n.m.r.的受体数（AN）表征了34种溶剂的亲电性。测量溶解在相应溶剂中的三乙基氧化膦。研究了六氰合铁（Ⅲ）-六氰合铁（Ⅱ）体系在不同溶剂中的Z值、ET值、Y值、溶剂化自由能和氧化还原电位与受体数之间的关系。新的参数提供了一个有用的指导，在选择最合适的溶剂为给定的反应，与供体数。
The electrophilic properties of 34 solvents have been characterized by the Acceptor Number (AN) which has been derived from31P-n.m.r. measurements of triethylphosphine oxide dissolved in the respective solvents. Relationships are found between the acceptor numbers and theZ-values,ET-values andY-values, as well as the free energies of solvation of anions and the redox potentials of the hexacyanoferrate(III)—hexacyanoferrrate(II) system in different solvents. The new parameter provides—together with the donor number—a useful guide in choosing the most appropriate solvent for a given reaction.