A series of cis-bis5-[(E)-2-(aryl)-1-diazenyl]quinolin-8-olatodimethyltin(IV), Me2Sn(L)2, and chloro-5-[(E)-2-(aryl)-1-diazenyl]quinolin-8-olatodimethyltin(IV), Me2SnCl(L), complexes have been synthesized by reacting the sodium salts of 5-[(E)-2-(aryl)-1-diazenyl)quinolin-8-ol (LH) and dimethyltin dichloride in 2:1 and 1:1 molar ratios, respectively. These complexes have been characterized by 1H, 13C, 119Sn NMR in solution and by IR and 119Sn Mössbauer spectroscopy in the solid state. The structures of two of the dimethyltin(IV) complexes, viz., Me2Sn(L2)2 (2) and Me2SnCl(L3). C7H8, were determined by single crystal X-ray diffraction. In general, the Me2Sn(L)2 complexes were found to adopt a distorted cis-octahedral arrangement, while Me2SnCl(L) complexes have a distorted trigonal bipyramidal coordination geometry around the tin atom in solution and in the solid state. Disclaimer: This is a version of an unedited manuscript that has been accepted for publication. As a service to authors and researchers we are providing this version of the accepted manuscript (AM). Copyediting, typesetting, and review of the resulting proof will be undertaken on this manuscript before final publication of the Version of Record (VoR). During production and pre-press, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal relate to this version also. PLEASE SCROLL DOWN FOR ARTICLEFull terms and conditions of use: http://www.tandfonline.com/page/terms-and-conditions This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden.The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to date. The accuracy of any instructions, formulae, and drug doses should be independently verified with primary sources. The publisher shall not be liable for any loss, actions, claims, proceedings, demand, or costs or damages whatsoever or howsoever caused arising directly or indirectly in connection with or arising out of the use of this material.

Several triphenyltin chloride picoline N-oxide adducts were synthesized. X-ray studies of triphenyltin chloride 4picoline N-oxide indicate that the adduct has a distorted trigonal bipyramid (TBP) configuration with the phenyl groups in the equatorial positions and the axial positions being occupied by the 4-picoline N-oxide ligand and chlorine atom. Structures of the other adducts are assumed to be similar based on the IR spectra. Multinuclear NMR studies indicated that the TBP configuration is lost in solution. Screening results of the adducts against Escherichia coli (E. coli) and Bacillus subtilis (B. subtilis) indicate that the E. coli were more tolerant to the adducts. In addition to the adducts, three other series of triorganotins that incorporated various modified fragments of pyrethroids were also tested against B. subtilis and E. coli. No common order of toxicity was observed for these compounds based on the organic group attached to the tin atom. In addition to the evaluation of the triphenyltin chloride adducts and modified triorganotins against the two bacteria, 12 commercial triorganotins were evaluated against a freshwater snail, Biomphalaria glabrata (B. glabrata). The screening results indicated that the bacteria are more tolerant to the triorganotins than B. glabrata.