کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9763736 | 1498851 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The importance of the transannular secondary bonding strength in the molecular structures of metallocanes of type [X(CH2CH2Y)2MRRâ²] and [X(CH2CH2Y)2Mâ²R] (M = Ge(IV), Sn(IV), Pb(IV), Mâ²Â = As(III), Sb(III) and Bi(III); X = NRâ³, O, S; Y = O,
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی معدنی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The 1-oxa-4,6-dithia-, 1,3,6-trithia-, 1-aza-4,6-dithia-, 1-aza-4,6-dioxa-, 1-thia-4,6-dioxa- and 1,3,6-trioxametallocanes possess a strong 1,5 transannular interaction through an acceptor atom M [Ge(IV), Sn(IV), Pb(IV), As(III), Sb(III) and Bi(III)] and an X donor (O, S, NR). The conformation adopted by the metallocane ring has exhibited various conformations along with the extreme conformations boat-boat, boat-chair and chair-chair. The structural diversity observed in these eight-membered rings results in a variety of coordination numbers, as well as in the presence of polymeric structures. The purpose of the present review is to highlight the relationship between the strength of the transannular bonding and the resulting molecular structures. Factors such as coordination number, electronegativity and steric effects are revised.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Coordination Chemistry Reviews - Volume 249, Issues 7â8, April 2005, Pages 859-872
Journal: Coordination Chemistry Reviews - Volume 249, Issues 7â8, April 2005, Pages 859-872
نویسندگان
Raymundo Cea-Olivares, Verónica GarcÃa-Montalvo, Mónica M. Moya-Cabrera,