Surrogate for Debye-Waller Factors from Dynamic Stokes Shifts

被引：18

作者：

Cicerone, Marcus T. ^{[1
,2
]}

Zhong, Qin ^{[1
]}

Johnson, Jerainne ^{[1
]}

Aamer, Khaled A. ^{[1
]}

Tyagi, Madhusudan ^{[1
,3
]}

机构：

[1] NIST, Gaithersburg, MD 20899 USA

[2] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA

[3] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY LETTERS | 2011年 / 2卷 / 12期

关键词：

STRUCTURAL RELAXATION; SPECTROSCOPY; PROTEINS; GLASSES; LIQUIDS; SOLVENT; MOTIONS;

D O I：

10.1021/jz200490h

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We show that the short-time behavior of time-resolved fluorescence Stokes shifts (TRSS) are similar to that of the intermediate scattering function obtained from neutron scattering at q near the peak in the static structure factor for glycerol. This allows us to extract a Debye-Waller (DW) factor analogue from TRSS data at times as short as 1 ps in a relatively simple way. Using the time domain relaxation data obtained by this method, we show that DW factors evaluated at times >= 40 ps can be directly influenced by a. relaxation and thus should be used with caution when evaluating relationships between fast and slow dynamics in glass-forming systems.

引用

页码：1464 / 1468

页数：5

共 35 条

[1] FORMATION OF GLASSES FROM LIQUIDS AND BIOPOLYMERS [J].

ANGELL, CA .

SCIENCE, 1995, 267 (5206) :1924-1935

[2] THEORY OF THE TIME DEVELOPMENT OF THE STOKES SHIFT IN POLAR MEDIA [J].

BAGCHI, B ;

OXTOBY, DW ;

FLEMING, GR .

CHEMICAL PHYSICS, 1984, 86 (03) :257-267

[3] Measurement of coherent Debye-Waller factor in in vivo deuterated C-phycocyanin by inelastic neutron scattering [J].

BellissentFunel, MC ;

Filabozzi, A ;

Chen, SH .

BIOPHYSICAL JOURNAL, 1997, 72 (04) :1792-1799

[4] A NOTE ON THE DEBYE-WALLER THEORY [J].

BLACKMAN, M .

ACTA CRYSTALLOGRAPHICA, 1956, 9 (08) :734-737

[5] A RELATION BETWEEN FAST AND SLOW MOTIONS IN GLASSY AND LIQUID SELENIUM [J].

BUCHENAU, U ;

ZORN, R .

EUROPHYSICS LETTERS, 1992, 18 (06) :523-528

[6] Fast dynamics and stabilization of proteins: Binary glasses of trehalose and glycerol [J].

Cicerone, MT ;

Soles, CL .

BIOPHYSICAL JOURNAL, 2004, 86 (06) :3836-3845

[7] ANOMALOUS DIFFUSION OF PROBE MOLECULES IN POLYSTYRENE - EVIDENCE FOR SPATIALLY HETEROGENEOUS SEGMENTAL DYNAMICS [J].

CICERONE, MT ;

BLACKBURN, FR ;

EDIGER, MD .

MACROMOLECULES, 1995, 28 (24) :8224-8232

[8] Elastic resolution spectroscopy: a method to study molecular motions in small biological samples [J].

Doster, W ;

Diehl, M ;

Petry, W ;

Ferrand, M .

PHYSICA B, 2001, 301 (1-2) :65-68

[9] Colloquium: The glass transition and elastic models of glass-forming liquids [J].

Dyre, Jeppe C. .

REVIEWS OF MODERN PHYSICS, 2006, 78 (03) :953-972

[10] ESTIMATING THE TIME-ZERO SPECTRUM IN TIME-RESOLVED EMISSION MEASUREMENTS OF SOLVATION DYNAMICS [J].

FEE, RS ;

MARONCELLI, M .

CHEMICAL PHYSICS, 1994, 183 (2-3) :235-247

← 1 2 3 4 →