Concentration effect on the absorption spectra of oxazine1 and methylene blue in aqueous and alcoholic solutions

被引：68
|
作者：
Ghanadzadeh, A. [1 ]
Zeini, A. [2 ]
Kashef, A. [2 ]
Moghadam, M. [1 ]
机构：
[1] Guilan Univ, Fac Sci, Dept Chem, Rasht, Iran
[2] Isfahan Univ, Fac Sci, Dept Chem, Esfahan, Iran
来源：
JOURNAL OF MOLECULAR LIQUIDS | 2008年 / 138卷 / 1-3期
关键词：
oxazine dyes; methylene blue; ionic dyes; aggregation; dye dimerization; exciton theory;
D O I：
10.1016/j.molliq.2007.09.005
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 visible absorption spectra of oxazine-1 (OX) in aqueous and alcoholic solutions were studied as a function of the dye concentration. Due to the structural similarity of OX and MB, the optical characterization of methylene blue, MB, was also investigated for comparison. OX in aqueous solutions appears to exist almost in its monomeric form at concentrations below about 1 x 10(-4) M, while MB exhibit strong tendency to aggregate even at the low concentrations. The dimerization behavior of OX and MB in water was analyzed in terms of monomer-dimer equilibria. The nature of the interacting pairs in these dyes was discussed using the exciton theory. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：100 / 106
页数：7
相关论文
共 50 条
  • [1] Aggregation of methylene blue in frozen aqueous solutions studied by absorption spectroscopy
    Heger, D
    Jirkovsky, J
    Klán, P
    JOURNAL OF PHYSICAL CHEMISTRY A, 2005, 109 (30): : 6702 - 6709
  • [2] The effect of ultra-violet rays on the ultraviolet absorption spectrum of aqueous methylene blue solutions
    Nurnberger, CE
    Arnow, LE
    JOURNAL OF PHYSICAL CHEMISTRY, 1934, 38 (01): : 71 - 77
  • [3] ABSORPTION SPECTRA OF METHYLENE BLUE CRYSTALS
    MELANKHOLIN, NM
    DOKLADY AKADEMII NAUK SSSR, 1956, 108 (02): : 247 - 250
  • [4] ABSORPTION SPECTRA OF METHYLENE BLUE IN BENZENE
    PALIT, SR
    SAXENA, GK
    NATURE, 1966, 209 (5028) : 1127 - &
  • [5] EFFECT OF SOLVENT ON ABSORPTION AND FLUORESCENCE SPECTRA OF ALCOHOLIC SOLUTIONS OF TRYPAFLAVINE
    KETSKEMETY, I
    SZALAY, L
    VARKONYI, Z
    ACTA PHYSICA ET CHEMICA, 1965, 11 (1-2): : 15 - +
  • [6] ABSORPTION SPECTRA OF NEODYMIUM CHLORIDE IN AQUEOUS-ALCOHOLIC SOLUTIONS AT LOW TEMPERATURES
    POMINOV, IS
    OPTIKA I SPEKTROSKOPIYA, 1962, 12 (05): : 639 - 641
  • [7] THE ABSORPTION SPECTRA OF NEODIMIUM CHLORIDE IN AQUEOUS ALCOHOLIC SOLUTIONS AT LOW TEMPERATURES - COMMENT
    ZAIDEL, AN
    OPTIKA I SPEKTROSKOPIYA, 1962, 12 (06): : 804 - 804
  • [8] EVIDENCE FOR TRIMERIZATION IN AQUEOUS SOLUTIONS OF METHYLENE BLUE
    BRASWELL, E
    JOURNAL OF PHYSICAL CHEMISTRY, 1968, 72 (07): : 2477 - &
  • [9] Solvent effect on the Spectra of Methylene Green and Methylene Blue
    Olga Tchaikovskaya
    Vlada Chaidonova
    Elena Bocharnikova
    Evgeny Telminov
    Natalia Dmitrieva
    Dmitry Ezhov
    Journal of Fluorescence, 2023, 33 : 685 - 695
  • [10] Solvent effect on the Spectra of Methylene Green and Methylene Blue
    Tchaikovskaya, Olga
    Chaidonova, Vlada
    Bocharnikova, Elena
    Telminov, Evgeny
    Dmitrieva, Natalia
    Ezhov, Dmitry
    JOURNAL OF FLUORESCENCE, 2023, 33 (02) : 685 - 695
12345