Interaction of Prolin, Leucine and methylurea with inorganic cluster [(PO۴)M۱۲O۳۶].nH۲O; (M= Mo, W)

Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
View: 103

This Paper With 7 Page And PDF Format Ready To Download

  • Certificate
  • من نویسنده این مقاله هستم

استخراج به نرم افزارهای پژوهشی:

لینک ثابت به این Paper:

شناسه ملی سند علمی:

COSPC01_076

تاریخ نمایه سازی: 30 شهریور 1402

Abstract:

Three new inorganic-organic hybrid materials based on heteropolyoxometalates, [L-C۶H۱۴NO۲]۳[(PO۴)Mo۱۲O۳۶].۳H۲O (۱), [LC۵H۱۰NO۲]۳[(PO۴)W۱۲O۳۶].H۲O (۲), and [C۲H۷N۲O]۳[(PO۴)W۱۲O۳۶].۴H۲O (۳), where C۶H۱۴NO۲, C۵H۱۰NO۲, and C۲H۷N۲O are protonatedL-leucine, L-proline, and methylurea, respectively, have been synthesized and structurally characterized by some physico-chemicalmethods. Elemental analyses, IR, Raman, mass, UV, and ۱H NMR spectroscopies of the title hybrid materials indicate that there are vander Waals interactions between O atoms of the heteropolyoxometalates and water molecules, as well as the N and O atoms of the aminoacids and methyl urea moieties. The molecular structures of synthesized hybrid materials contain discrete entities of L-leucinium,L-prolinium or methyluronium and water molecules that surround every [(PO۴)M۱۲O۳۶]۳- anion, over the extended crystalline network.The observed bands in Raman spectra of ۲ and ۳ demonstrate that [(PO۴)W۱۲O۳۶]۳- anion retains its “Keggin structure”. Between pH =۷and pH =۴ the characteristic bands of the Keggin anion [(PO۴)M۱۲O۳۶]۳−(M = Mo, W) appear at ۲۱۰ and ۲۶۰ nm in the UV spectra,respectively.

Authors

Paria Nasehi,

Department of Chemistry, School of Sciences, Islamic Azad University, AhvazBranch, Ahvaz, ۶۱۳۴۹۶۸۸۷۵, Iran

Saeide Sayyahi,

Department of Chemistry, School of Sciences, Islamic Azad University, AhvazBranch, Ahvaz, ۶۱۳۴۹۶۸۸۷۵, Iran

Zahra Naeimavi

Department of Chemistry, School of Sciences, Islamic Azad University, AhvazBranch, Ahvaz, ۶۱۳۴۹۶۸۸۷۵, Iran

Mohsen Nikpour

Department of Chemistry, School of Sciences, Islamic Azad University, AhvazBranch, Ahvaz, ۶۱۳۴۹۶۸۸۷۵, Iran