منابع مشابه
Hyperconjugation in diethyl ether cation versus diethyl sulfide cation.
Ionization of a molecule can greatly alter its electronic structure as well as its geometric structure. In this collaborative experimental and theoretical study, we examined variance in hyperconjugation upon ionization of diethyl ether (DEE) and diethyl sulfide (DES). We obtained the experimental gas phase vibrational spectra of DEE, DES, DEE(+), DES(+), DEE(+)-Ar, and DES(+)-Ar in the wavenumb...
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متن کامل1,3-Diethyl-1,3-diphenylurea
The mol-ecule of the title compound, C(17)H(20)N(2)O, a symmetrical derivative of urea, shows non-crystallographic C(2) symmetry. Inter-action with the aromatic system of the phenyl substituents as well as amide-type resonance is responsible for the marked planarization of the coordination environments of the N atoms. C-H⋯O contacts give rise to the formation of centrosymmetric dimers in the cr...
متن کاملDiethyl 4,4′-(diazenediyl)dibenzoate
The full mol-ecule of the title compound, C(18)H(18)N(2)O(4), is generated by the application of an inversion centre. There are strong π-π inter-actions between adjacent mol-ecules with a centroid-centroid distance of 3.298 (2)Å.
متن کاملمجله مالیات،شماره 46، پاییز1386
فهرست مطالب:1- درآمد تحصیل شده از خارج و مسائل مالیاتی مرتبط با آن2- نظام بین المللی مالیاتی3- عقد رهن و رای دیوان عدالت اداری4- بررسی مالیاتی در مورد امارات متحده عربی5-درآمد مشمول مالیات و کسر معافیت ها
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2011
ISSN: 1600-5368
DOI: 10.1107/s1600536811013845