Petru Poni Institute of Macromolecular Chemistry, Romanian Academy, Aleea Grigore Ghica Voda, 41A, 700487 Iasi, Romania.
Spectrochim Acta A Mol Biomol Spectrosc. 2011 Nov;82(1):355-9. doi: 10.1016/j.saa.2011.07.061. Epub 2011 Jul 23.
Solvatochromic behavior of some carbanion monosubstituted and disubstituted pyridazinium ylides was studied experimentally in various polar and nonpolar solvents. Different solvent parameters, such as microscopic solvent polarity, E(T)(30), the Kamlet-Taft and the Catalan parameters have been used for describing the solute-solvent interactions and solvatochromic shifts of the visible intramolecular charge transfer (ICT) absorption band of pyridazinium ylides. It is found that the solute hydrogen bond donating ability and dipolarity/polarizability play an important role in the description of the pronounced solvatochromism in the studied solutions. The Catalan solvent scales are found to be the most suitable for describing the solvatochromic shifts.
一些碳阴离子单取代和二取代哒嗪翁叶立德的溶剂化变色行为在各种极性和非极性溶剂中进行了实验研究。不同的溶剂参数，如微观溶剂极性、E(T)(30)、Kamlet-Taft 和 Catalan 参数，已被用于描述哒嗪翁叶立德的可见分子内电荷转移 (ICT) 吸收带的溶质-溶剂相互作用和溶剂化变色位移。结果发现，溶质氢键供体能力和偶极矩/极化率在研究溶液中明显的溶剂化变色描述中起着重要作用。发现 Catalan 溶剂标度最适合描述溶剂化变色位移。
