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Electrospray ionization mass spectrometry of tributyltin(IV) complexes and their larvicidal activity on mosquito larvae: crystal and molecular structure of polymeric (Bu 3 Sn[O 2 CC 6 H 4 {NN(C 6 H 3 ‐4‐OH(C(H)NC 6 H 4 OCH 3 ‐4))}‐ o ]) n
Author(s) -
Basu Baul Tushar S.,
Singh Keisham Surjit,
Holčapek Michal,
Jirásko Robert,
Linden Anthony,
Song Xueqing,
Zapata Alejandra,
Eng George
Publication year - 2005
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.937
Subject(s) - chemistry , anopheles stephensi , aedes aegypti , electrospray ionization , mass spectrometry , instar , stereochemistry , tributyltin , nuclear chemistry , benzoic acid , chromatography , larva , organic chemistry , botany , biology
A series of tributyltin(IV) complexes of 2‐[( E )‐2‐(3‐formyl‐4‐hydroxyphenyl)‐1‐diazenyl]benzoic acid and 4‐[(( E )‐1‐{2‐hydroxy‐5‐[( E )‐2‐(2‐carboxyphenyl)‐1‐diazenyl]phenyl}methylidene)amino]aryls have been investigated by electrospray mass spectrometry (ESI‐MS) and tandem mass spectrometry (MS n ) techniques. The assignments are facilitated by agreement between observed and calculated isotopic patterns and MS n studies. Single‐crystal X‐ray crystallography of (Bu 3 Sn[O 2 CC 6 H 4 {NN(C 6 H 3 ‐4‐OH(C(H)NC 6 H 4 OCH 3 ‐4))}‐ o ]) n reveals a polymeric structure. Toxicity studies of the tributyltin(IV) complexes of the 4‐[(( E )‐1‐{2‐hydroxy‐5‐[( E )‐2‐(2‐carboxyphenyl)‐1‐diazenyl]phenyl}methylidene)amino]aryls on the second larval instar of the Aedes aegypti and Anopheles stephensi mosquito larvae are also reported. The LC 50 values indicate that the complexes are effective larvicides, which range from a low of 0.36 ppm to a high of 0.69 ppm against the Ae. aegypti larvae and between 0.82 and 1.17 ppm against the An. stephens i larvae. Copyright © 2005 John Wiley & Sons, Ltd.