Crystallization on heating and complex phase behavior of α-cyclodextrin solutions

被引：21
作者：
Plazanet, M.
Dean, M.
Merlini, M.
Huller, A.
Emerich, H.
Meneghini, C.
Johnson, M. R.
Trommsdorff, H. P.
机构：
[1] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France
[2] Univ Grenoble 1, CNRS, UMR 5588, Spectrometrie Phys Lab, F-38042 Grenoble, France
[3] European Synchrotron Radiat Facil, F-38043 Grenoble, France
[4] Univ Roma Tre, Dipartimento Fis, I-00146 Rome, Italy
[5] Univ Milan, I-20133 Milan, Italy
[6] Univ Florence, LENS, I-50019 Sesto Fiorentino, Italy
[7] Univ Roma La Sapienza, CNR, INFM, CRS Soft Matter, I-00185 Rome, Italy
来源：
JOURNAL OF CHEMICAL PHYSICS | 2006年 / 125卷 / 15期
关键词：
D O I：
10.1063/1.2346680
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：
Solutions composed of alpha-cyclodextrin (alpha-CD), water, and various methylpyridines, in particular, 4-methylpyridine (4MP), undergo reversible liquid-solid transitions upon heating, the crystalline solid phases undergoing further phase transformations at higher temperatures. This unusual behavior has been characterized by an ensemble of measurements, including solubility, differential scanning calorimetry, quasielastic neutron scattering, as well as x-ray powder diffraction. For the alpha-CD/4MP system five crystalline phases have been identified. The unit cell parameters and corresponding changes with temperature indicate a scenario for the crystallization process. A simple model is proposed that mimics the observed disorder-order transition. (c) 2006 American Institute of Physics.
引用
收藏
页数：6
相关论文
共 13 条
[1]   TOPOGRAPHY OF CYCLODEXTRIN INCLUSION COMPLEXES .15. CRYSTAL AND MOLECULAR-STRUCTURE OF THE CYCLOHEXAAMYLOSE-7.57 WATER COMPLEX, FORM-III - 4-MEMBERED AND 6-MEMBERED CIRCULAR HYDROGEN-BONDS [J].
CHACKO, KK ;
SAENGER, W .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1981, 103 (07) :1708-1715
[2]   BETA-CYCLODEXTRIN PYRIDINE GEL SYSTEMS - THE CRYSTAL-STRUCTURE OF A 1ST BETA-CYCLODEXTRIN PYRIDINE WATER COMPOUND [J].
DERANGO, C ;
CHARPIN, P ;
NAVAZA, J ;
KELLER, N ;
NICOLIS, I ;
VILLAIN, F ;
COLEMAN, AW .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1992, 114 (13) :5475-5476
[3]   Temperature induced crystallization transition in aqueous solutions of β-cyclodextrin, heptakis(2,6-di-O-methyl)-β-cyclodextrin (DIMEB), and heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin (TRIAMB) studied by differential scanning calorimetry [J].
Frank, J ;
Holzwarth, JF ;
Saenger, W .
LANGMUIR, 2002, 18 (16) :5974-5976
[4]   TOPOGRAPHY OF CYCLODEXTRIN INCLUSION COMPLEXES .16. CYCLIC SYSTEM OF HYDROGEN-BONDS - STRUCTURE OF ALPHA-CYCLODEXTRIN HEXAHYDRATE, FORM (II) - COMPARISON WITH FORM (I) [J].
LINDNER, K ;
SAENGER, W .
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1982, 38 (JAN) :203-210
[5]   Freezing on heating of liquid solutions [J].
Plazanet, M ;
Floare, C ;
Johnson, MR ;
Schweins, R ;
Trommsdorff, HP .
JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (11) :5031-5034
[6]  
PLAZANET M, UNPUB CHEM PHYS
[7]   Crystal structure of a new α-cyclodextrin hydrate form.: Molecular geometry and packing features:: disordered solvent contribution [J].
Puliti, R ;
Mattia, CA ;
Paduano, L .
CARBOHYDRATE RESEARCH, 1998, 310 (1-2) :1-8
[8]   Cyclodextrin inclusion complexes: Host-guest interactions and hydrogen-bonding networks [J].
Saenger, W ;
Steiner, T .
ACTA CRYSTALLOGRAPHICA SECTION A, 1998, 54 :798-805
[9]   Structures of the common cyclodextrins and their larger analogues - Beyond the doughnut [J].
Saenger, WR ;
Jacob, J ;
Gessler, K ;
Steiner, T ;
Hoffmann, D ;
Sanbe, H ;
Koizumi, K ;
Smith, SM ;
Takaha, T .
CHEMICAL REVIEWS, 1998, 98 (05) :1787-1802
[10]   Inverse melting and inverse freezing: A spin model [J].
Schupper, N ;
Shnerb, NM .
PHYSICAL REVIEW E, 2005, 72 (04)
12