NORMAL-MODES OF POLY(L-VALINE) IN RELATION TO SPECTRA OF OLIGOVALINES

被引：15

作者：

BURMAN, L ^{[1
]}

TANDON, P ^{[1
]}

GUPTA, VD ^{[1
]}

RASTOGI, S ^{[1
]}

SRIVASTAVA, S ^{[1
]}

机构：

[1] UNIV LUCKNOW,DEPT PHYS,LUCKNOW 226007,UTTAR PRADESH,INDIA

来源：

POLYMER JOURNAL | 1995年 / 27卷 / 05期

关键词：

CONFORMATION; PHONON DISPERSION; SPECIFIC HEAT; NORMAL MODE ANALYSIS; POLY(L-VALINE); DENSITY OF STATES; OLIGOVALINES;

D O I：

10.1295/polymj.27.481

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(L-valine) (PLV) belongs to the class of polyamino acids having a bulky side chain. It preferably adopts beta-sheet conformation, although high molecular weight PLV may form an alpha helix as well. In the present communication we report a detailed study of the phonons and their dispersion for beta-PLV and the spectra of oligovalines in relation to its polymeric form. The N-deuterated analog of beta-PLV has also been studied to confirm the correctness of assignments and force-field. Density-of-states and heat capacity have been obtained. The heat capacity is in very good agreement with the experimental measurements of Roles et al.

引用

页码：481 / 491

页数：11

共 25 条

[1]

[Anonymous], 1980, MOL VIBRATIONS

[2] THERMODYNAMICS, CHEMICAL REACTIONS AND MOLECULAR BIOLOGY [J].

BENZINGER, TH .

NATURE, 1971, 229 (5280) :100-+

[3]

BOWER DI, 1989, VIB SPECTROSC, P154

[4]

BU HS, 1988, POLYMER, V29, P1486

[5]

DWIVEDI AM, 1972, CHEM PHYS LETT, V16, P909

[6] LOW-FREQUENCY VIBRATIONAL-SPECTRA OF SOME HOMOPOLYPEPTIDES IN SOLID-STATE [J].

FANCONI, B .

BIOPOLYMERS, 1973, 12 (12) :2759-2776

[7] PHONON DISPERSION CURVES AND NORMAL COORDINATE ANALYSIS OF ALPHA-POLY-L-ALANINE [J].

FANCONI, B ;

SMALL, EW ;

PETICOLAS, WL .

BIOPOLYMERS, 1971, 10 (08) :1277-+

[8] LASER-RAMAN SPECTROSCOPY OF BIOMOLECULES .11. CONFORMATIONAL STUDY OF POLY(L-VALINE) AND COPOLYMERS OF L-VALINE AND L-ALANINE [J].

FASMAN, GD ;

ITOH, K ;

LIU, CS ;

LORD, RC .

BIOPOLYMERS, 1978, 17 (01) :125-143

[9] RAMAN SPECTROSCOPIC STUDY OF MECHANICALLY DEFORMED POLY-L-ALANINE [J].

FRUSHOUR, BG ;

KOENIG, JL .

BIOPOLYMERS, 1974, 13 (03) :455-474

[10] VIBRATION SPECTRA OF POLYGLYCINE [J].

GUPTA, VD ;

TREVINO, S ;

BOUTIN, H .

JOURNAL OF CHEMICAL PHYSICS, 1968, 48 (07) :3008-&

← 1 2 3 →