Linear dependence of the intensity of the [M + H] +  ion peak in fast atom bombardment mass spectrometry on the basicity of  meso ‐substituted octaethylporphyrins | Zendy

Van Lin | Zendy; Fang YiWei | Zendy; Liang XiYun | Zendy; Wu GuoZhang | Zendy; Leung HiuKwong | Zendy

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Linear dependence of the intensity of the [M + H] + ion peak in fast atom bombardment mass spectrometry on the basicity of meso ‐substituted octaethylporphyrins

Author(s) -

Van Lin,

Fang YiWei,

Liang XiYun,

Wu GuoZhang,

Leung HiuKwong

Publication year - 1991

Publication title -

organic mass spectrometry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.475

H-Index - 121

eISSN - 1096-9888

pISSN - 0030-493X

DOI - 10.1002/oms.1210260416

Subject(s) - chemistry , fast atom bombardment , ion , perchloric acid , substituent , analytical chemistry (journal) , mass spectrometry , atom (system on chip) , titration , inorganic chemistry , medicinal chemistry , chromatography , organic chemistry , computer science , embedded system

A fast atom bombardment mass spectrometric study of the meso ‐substituent effect of Octaethylporphyrins (OEPX, X = NH 2 , CH 3 , H, CHO, Cl, CN, NO 2 ) is reported. The intensity of the [M + H] + ion peaks was estimated quantitatively using an external standard, which was observed to be correlated linearly with the basicity (p K 3 ) of the OEPX. The p K 3 value of the OEPXs was obtained by titration with perchloric acid and it was observed to be correlated linearly with Hammett's σ p value, with a ρ value of 1.38.

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