Molecular Motions of [N(C2H5)4]+ and [N(CH3)4]+ ions by 1H Nuclear Magnetic Resonance Relaxation in [N(C2H5)4]2CoCl4</S

Molecular Motions of [N(C₂H₅)₄]⁺ and [N(CH₃)₄]⁺ ions by ¹H Nuclear Magnetic Resonance Relaxation in [N(C₂H₅)₄]₂CoCl₄
Molecular Motions of [N(C₂H₅)₄]⁺ and [N(CH₃)₄]⁺ ions by ¹H Nuclear Magnetic Resonance Relaxation in [N(C₂H₅)₄]₂CoCl₄

ㆍ 저자명: Yoon. Su-A,Lim. Ae-Ran
ㆍ 간행물명: Journal of the Korean magnetic resonance society
ㆍ 권/호정보: 2011년|15권 2호|pp.146-156 (11 pages)
ㆍ 발행정보: 한국자기공명학회
ㆍ 파일정보: 정기간행물|ENG|
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ㆍ 주제분야: 기타

이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.

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기타언어초록

The line widths and spin-lattice relaxation times of protons in $[N(C_2H_5)_4]_2CoCl_4$ and $[N(CH_3)_4]_2CoCl_4$ single crystals were investigated in the temperature range 160-400 K. The temperature dependences of the spin-lattice relaxation times are attributed to the molecular motions of the ethyl and methyl groups in the $[N(C_2H_5)_4]^+$ and $[N(CH_3)_4]^+$ ions respectively. The NMR line widths indicate that the ethyl groups in $[N(C_2H_5)_4]_2CoCl_4$ have one more degree of freedom than the methyl groups in $[N(CH_3)_4]_2CoCl_4$. The experimental results are interpreted in terms of the reorientations of the methyl and ethyl groups.

키워드

protaetiamycine analogue antimicrobial peptide bacterial cell selectivity NMR structure

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