Polyanionic Hexagons: X6n– (X = Si, Ge)
نویسندگان
چکیده
منابع مشابه
Polyanionic Hexagons: X6n- (X = Si, Ge)
The paper reviews the polyanionic hexagons of silicon and germanium, focusing on aromaticity. The chair-like structures of hexasilaand hexagermabenzene are similar to a nonaromatic cyclohexane (CH2)6 and dissimilar to aromatic D6h-symmetric benzene (CH)6, although silicon and germanium are in the same group of the periodic table as carbon. Recently, six-membered silicon and germanium rings with...
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پیوندهای غیرکوالانسی مدلی از برهم کنش های درون ملکولی و بین ملکولی هستند که به دلیل نیروهای الکتروستاتیک و نیروهای لاندنی میان اتم های مختلف بوجود می آیند. پیوند هالوژنی به برهم کنش میان اتم هالوژن و گونه ی الکترون دهنده نسبت داده می شود. این واقعیت که هم اتم هالوژن و هم گونه ی الکترون دهنده دارای بار منفی هستند، برهم کنش های میان این دو بار منفی را چالش برانگیز کرده است. دو مفهوم "حفره ی سیگما...
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ژورنال
عنوان ژورنال: Symmetry
سال: 2010
ISSN: 2073-8994
DOI: 10.3390/sym2041745