کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1233162 1495233 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, crystal growth, characterization and theoretical studies of 4-aminobenzophenonium picrate
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Synthesis, crystal growth, characterization and theoretical studies of 4-aminobenzophenonium picrate
چکیده انگلیسی


• Synthesis and characterization of a new organic picrate is reported.
• Picrate formation was confirmed by FT-IR and NMR spectral studies.
• HOMO and LUMO energy gap explains the eventual charge transfer interactions.
• First-order molecular hyperpolarizability is estimated.

Single crystals of 4-aminobenzophenonium picrate (4ABPP) were grown by slow evaporation of a mixed solvent system methanol–acetone (1:1,v/v) containing equimolar quantities of picric acid and 4-aminobenzophenone. The proton and carbon signals are confirmed by nuclear magnetic resonance spectroscopy. The various functional groups present in the molecule are identified by FT-IR analysis. Optimized geometry, first-order molecular hyperpolarizability (β), polarizability (α), bond length, bond angles and excited state energy from theoretical UV were derived by Hartree–Fock calculations. The complete assignment of the vibrational modes for 4-aminobenzophenonium picrate was performed by the scaled quantum mechanics force field (SQMFF) methodology using potential energy distribution. Natural bond orbital (NBO) calculations were employed to study the stabilities arising from charge delocalization and intermolecular interactions of 4ABPP. The atomic charge distributions of the various atoms present in 4ABPP are obtained by Mulliken charge population analysis. The as-grown crystal is further characterized by thermal and optical absorbance studies.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 135, 25 January 2015, Pages 46–54
نویسندگان
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