2003 Fiscal Year Final Research Report Summary
Microscopic Structure of Aqueous Solutions Involving Amino Acid Molecules with Different Optical Activities
| Project/Area Number |
14540509
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Inorganic chemistry
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| Research Institution | Yamagata University |
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Principal Investigator |
KAMEDA Yasuo Yamagata University, Faculty of Science, Professor, 理学部, 教授 (60202024)
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| Co-Investigator(Kenkyū-buntansha) |
USUKI Takeshi Yamagata University, Faculty of Science, Professor, 理学部, 教授 (70250909)
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| Project Period (FY) |
2002 – 2003
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| Keywords | neutron diffraction / isotopic substitution method / alanine molecule / optical activity / intermolecular hydrogen bonds / solution structure / glycine molecule / urea molecule |
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| Research Abstract |
In order to investigate microscopic properties on the structure of aqueous solutions that involve amino acid molecules with different optical activities, following structural analyses have been carried out in this project;
1)Hydrogen-bonded structure in aqueous 2.5 mol% D, L-and L-alanine heavy water solutions by means of the TOF and reactor neutron diffraction measurements.
2)Determination of partial structure functions (aHH(Q), aXH(Q) and aXX(Q), X: O, C and N) of aqueous 2.5 mol% D, L-and L-alanine solutions studied by neutron diffraction with the H/D isotopic substitution method.
3)Hydration structure around the amino group of the urea molecule studied by neutron diffraction with ^<14>N/^<15>N and H/D isotopic substitution methods.
4)Hydration structure around the methyl group of the alanine molecule in aqueous solutions studied by neutron diffraction with the H/D isotopic substitution method.
5)Hydration structure around the carboxyl group of the acetate ion studied by ^<12>C/^<13>C isotopic substitution method.
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