{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,20]],"date-time":"2025-10-20T16:47:36Z","timestamp":1760978856045,"version":"build-2065373602"},"reference-count":50,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2003,5,21]],"date-time":"2003-05-21T00:00:00Z","timestamp":1053475200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Chemistry A European J"],"published-print":{"date-parts":[[2003,6,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The four organotin (<jats:sc>IV<\/jats:sc>) compounds ([2,6\u2010bis(dimethylaminomethyl)phenyl](<jats:italic>n<\/jats:italic>\u2010butyl)R<jats:sup>1<\/jats:sup>R<jats:sup>2<\/jats:sup>stannane, with R<jats:sup>1<\/jats:sup>=R<jats:sup>2<\/jats:sup>=<jats:italic>n<\/jats:italic>Bu (<jats:bold>1<\/jats:bold>), R<jats:sup>1<\/jats:sup>=<jats:italic>n<\/jats:italic>Bu, R<jats:sup>2<\/jats:sup>=Cl (<jats:bold>2<\/jats:bold>), R<jats:sup>1<\/jats:sup>=<jats:italic>n<\/jats:italic>Bu, R<jats:sup>2<\/jats:sup>=Br (<jats:bold>3<\/jats:bold>) and R<jats:sup>1<\/jats:sup>=R<jats:sup>2<\/jats:sup>=Br (<jats:bold>4<\/jats:bold>)), have been prepared and their structures have been investigated in various solvents and at various temperatures (NMR). The structures of these compounds in solution are solvent\u2010 and temperature\u2010dependent. The solid state structures of <jats:bold>2<\/jats:bold> and <jats:bold>3<\/jats:bold> were studied using CP\/MAS NMR spectroscopy and Xray diffraction techniques. The tetraorganotin compound <jats:bold>1<\/jats:bold> exhibits tetrahedral geometry with very weak Sn\uf8ffN coordination. The dynamic process of Sn\uf8ffN bond(s) association\/dissociation was observed using low\u2010temperature NMR measurements. The tin central atom in <jats:bold>2<\/jats:bold> and <jats:bold>3<\/jats:bold> is [4+2]\u2010coordinated in toluene solutions and the NMR low\u2010temperature measurements reveal the same dynamic behavior as for <jats:bold>1<\/jats:bold> in this solution, with retention of the covalent halogen\uf8fftin bond. However, this bond is dissociated in methanol solutions, yielding ionic species, where the tin atom is only [3+2]\u2010coordinated, and the halogen atom lies outside of the primary coordination sphere of the tin atom. In addition, while the same ionic structure as in methanol was found in the whole measured temperature range in the chloroform solution of <jats:bold>3<\/jats:bold>, the structure of <jats:bold>2<\/jats:bold> varies in this solvent. In this compound, the covalent Sn\uf8ffCl bond (similar structure as in toluene solution), which is retained at room temperature in chloroform solution, is continuously dissociated with a decrease in temperature, leading to ionic bonding (a similar structure as in methanol solution). All the above\u2010mentioned processes are reversible in all the solvents and at all temperatures. In the solid state, the covalent Sn\uf8ffCl bond is observed for <jats:bold>2<\/jats:bold>, while an ionic bond was found in <jats:bold>3<\/jats:bold>.<\/jats:p>","DOI":"10.1002\/chem.200304572","type":"journal-article","created":{"date-parts":[[2003,6,2]],"date-time":"2003-06-02T11:05:56Z","timestamp":1054551956000},"page":"2411-2418","source":"Crossref","is-referenced-by-count":34,"title":["Structural Study of 2,6\u2010Bis[(dimethylaminomethyl)phenyl]butyl Stannanes: Nonconventional Behaviour of Triorganotin(<scp>IV<\/scp>) Halides"],"prefix":"10.1002","volume":"9","author":[{"given":"Ale\u0161","family":"R\u016f\u017ei\u010dka","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roman","family":"Jambor","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ivana","family":"C\u00edsa\u0159ov\u00e1","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jaroslav","family":"Hole\u010dek","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2003,5,21]]},"reference":[{"key":"e_1_2_6_1_2","unstructured":"\u00a0"},{"volume-title":"Chemistry of Hypervalent Compounds","year":"1999","key":"e_1_2_6_2_2"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1021\/om00050a025"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1021\/om990219q"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1080\/10426509908546392"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3757(20011015)113:20<3866::AID-ANGE3866>3.0.CO;2-J"},{"key":"e_1_2_6_6_3","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3773(20011015)40:20<3750::AID-ANIE3750>3.0.CO;2-6"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr00099a002"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-328X(98)00815-8"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-328X(97)00160-5"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1021\/om00006a023"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1021\/om960008a"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1002\/chem.19960020316"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0065-3055(08)60493-1"},{"key":"e_1_2_6_14_2","unstructured":"\u00a0"},{"volume-title":"Chemistry of Tin","year":"1998","key":"e_1_2_6_15_2"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1021\/om000813w"},{"key":"e_1_2_6_17_2","unstructured":"\u00a0"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja00433a058"},{"key":"e_1_2_6_19_2","first-page":"373","volume":"57","author":"Jambor R.","year":"2001","journal-title":"Acta Crystallogr."},{"key":"e_1_2_6_20_2","doi-asserted-by":"publisher","DOI":"10.1021\/om020361i"},{"key":"e_1_2_6_21_2","unstructured":"\u00a0"},{"key":"e_1_2_6_22_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1099-0739(199901)13:1<29::AID-AOC809>3.0.CO;2-D"},{"key":"e_1_2_6_23_2","first-page":"369","volume-title":"Metal Complexes in Cancer Chemotherapy","author":"Crowe A. 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