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Synthesis and Conformational Analysis of Sterically Congested (4R)-(−)-1-(2,4,6-Trimethylbenzenesulfonyl)-3-n-butyryl-4-tert-butyl-2-imidazolidinone: X-Ray Crystallography and Semiempirical Calculations
المؤلفون المشاركون
al-Swaidan, Ibrahim A.
Abdel-Aziz, Alaa A.-M.
El-Azab, Adel S.
Alanazi, Amer M.
المصدر
العدد
المجلد 2014، العدد 2014 (31 ديسمبر/كانون الأول 2014)، ص ص. 1-15، 15ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2014-01-05
دولة النشر
مصر
عدد الصفحات
15
التخصصات الرئيسية
الملخص EN
The crystal structure of (4R)-(−)-1-(2,4,6-trimethylbenzenesulfonyl)-3-n-butyryl-4-tert-butyl-2-imidazolidinone (3) was determined by single-crystal X-ray diffraction.
Compound 3 crystallizes in triclinic system in space group P1 (≠ 1).
The crystal data are a = 10.6216 5 Å, b = 16.532 1 Å, c = 8.9572 9 Å, ∝ = 91.193 6 ∘ , β = 93.849 6 ∘ , γ = 88.097 4 ∘ , V = 1568.2 2 Å3, Z = 3 , D c a l c = 1.253 g/cm3, μ CuK α = 15.98 cm−1, F 000 = 636.00 , T = 20.0 °C, and R = 0.037 .
The crystal structure confirmed the occurrence of three molecules of 3A, 3B, and 3C in which the n-butyryl moiety adopted the s-transoid conformation.
Crystal structure also revealed that the conformation of 2,4,6-trimethylbenzenesulfonyl groups was in anti-position relative to tert-butyl group.
The crystal packing showed that three molecules of compound 3 are stacked as a result of intermolecular π-π interactions between the phenyl ring of one molecule and the phenyl ring of the other molecule by approaching each other to an interplanar separation of 5.034 Å.
Interestingly, these stacked molecules are also connected by intermolecular CH-π interaction.
The conformational analysis of the s-transoid 3A, 3B, and 3C was separately performed by molecular mechanic MM+ force field.
Additionally, computational investigation using semiempirical AM1 and PM3 methods was performed to find a correlation between experimental and calculated geometrical parameters.
The data obtained suggest that the structural data furnished by the AM1 method is in better agreement with those experimentally determined for the above compound.
It has been found that the lowest energetic conformer computed gives approximate correspondence with experimental solid state data.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Swaidan, Ibrahim A.& El-Azab, Adel S.& Alanazi, Amer M.& Abdel-Aziz, Alaa A.-M.. 2014. Synthesis and Conformational Analysis of Sterically Congested (4R)-(−)-1-(2,4,6-Trimethylbenzenesulfonyl)-3-n-butyryl-4-tert-butyl-2-imidazolidinone: X-Ray Crystallography and Semiempirical Calculations. Journal of Chemistry،Vol. 2014, no. 2014, pp.1-15.
https://search.emarefa.net/detail/BIM-1039906
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Swaidan, Ibrahim A.…[et al.]. Synthesis and Conformational Analysis of Sterically Congested (4R)-(−)-1-(2,4,6-Trimethylbenzenesulfonyl)-3-n-butyryl-4-tert-butyl-2-imidazolidinone: X-Ray Crystallography and Semiempirical Calculations. Journal of Chemistry No. 2014 (2014), pp.1-15.
https://search.emarefa.net/detail/BIM-1039906
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Swaidan, Ibrahim A.& El-Azab, Adel S.& Alanazi, Amer M.& Abdel-Aziz, Alaa A.-M.. Synthesis and Conformational Analysis of Sterically Congested (4R)-(−)-1-(2,4,6-Trimethylbenzenesulfonyl)-3-n-butyryl-4-tert-butyl-2-imidazolidinone: X-Ray Crystallography and Semiempirical Calculations. Journal of Chemistry. 2014. Vol. 2014, no. 2014, pp.1-15.
https://search.emarefa.net/detail/BIM-1039906
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1039906
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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