COUNTERION-DEPENDENT REORIENTATION DYNAMICS OF AN OXAZINE IN POLAR PROTIC AND APROTIC-SOLVENTS

被引:45
作者
BLANCHARD, GJ
机构
[1] Bell Communications Research, Inc., Red Bank, NJ 07701
[2] Department of Chemistry, Michigan State University, East Lansing
关键词
D O I
10.1021/j100166a069
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
The rotational diffusion characteristics of oxazine 725 perchlorate and chloride have been measured in several polar protic and aprotic solvents. Oxazine 725 salts exhibit counterion-dependent reorientation in methanol and acetonitrile, but not in 1-propanol, 1-hexanol, N,N-dimethylformamide, dimethyl sulfoxide, or water. Counterion-dependent reorientation arises from the associative ion pair formed in solution between the oxazine 725 cation and its counterion. The observation of counterion-dependent reorientation is shown to depend not only on the degree of complexation of each salt but also on the reorientation times of the different species present in solution.
引用
收藏
页码:5293 / 5299
页数:7
相关论文
共 27 条
[1]   SHOT-NOISE-LIMITED DETECTION SCHEME FOR 2-BEAM LASER SPECTROSCOPIES [J].
ANDOR, L ;
LORINCZ, A ;
SIEMION, J ;
SMITH, DD ;
RICE, SA .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1984, 55 (01) :64-67
[2]   MULTIPLE MODULATION FOR OPTICAL PUMP-PROBE SPECTROSCOPY [J].
BADO, P ;
WILSON, SB ;
WILSON, KR .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1982, 53 (05) :706-707
[3]  
Barbara P. F., 1990, ADV PHOTOCHEM, V15, P1, DOI DOI 10.1002/9780470133453.CHL
[4]   THE SOLUTE SIZE EFFECT IN ROTATIONAL DIFFUSION EXPERIMENTS - A TEST OF MICROSCOPIC FRICTION THEORIES [J].
BENAMOTZ, D ;
DRAKE, JM .
JOURNAL OF CHEMICAL PHYSICS, 1988, 89 (02) :1019-1029
[5]   MICROSCOPIC FRICTIONAL FORCES ON MOLECULAR-MOTION IN LIQUIDS - PICOSECOND ROTATIONAL DIFFUSION IN ALKANES AND ALCOHOLS [J].
BENAMOTZ, D ;
SCOTT, TW .
JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (07) :3739-3748
[6]   A CRITICAL COMPARISON OF MOLECULAR-REORIENTATION IN THE GROUND AND EXCITED ELECTRONIC STATES - CRESYL VIOLET IN METHANOL [J].
BLANCHARD, GJ ;
WIRTH, MJ .
JOURNAL OF CHEMICAL PHYSICS, 1985, 82 (01) :39-44
[8]   ANOMALOUS TEMPERATURE-DEPENDENT REORIENTATION OF CRESYL VIOLET IN 1-DODECANOL [J].
BLANCHARD, GJ ;
WIRTH, MJ .
JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (11) :2521-2525
[9]   DETECTION OF A TRANSIENT SOLVENT SOLUTE COMPLEX USING TIME-RESOLVED PUMP PROBE SPECTROSCOPY [J].
BLANCHARD, GJ .
ANALYTICAL CHEMISTRY, 1989, 61 (21) :2394-2398
[10]   ORIENTATIONAL RELAXATION DYNAMICS OF OXAZINE-118 AND RESORUFIN IN THE BUTANOLS - VALENCE-DEPENDENT AND STATE-DEPENDENT SOLVATION EFFECTS [J].
BLANCHARD, GJ ;
CIHAL, CA .
JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (21) :5950-5954