又称方形酸、方克酸、3,4-二羟基-3-环丁烯-1,2-二酮。熔点>300℃(293℃分解)。用作合成有机光导体、液晶显示材料、激光书写记录材料及静电照相光受体材料的中间体。
The squaric acid, croconate acid, salicylic acid which contain hydroxy can form a big integration anion with Boron, assemble many lithium salts combining with the lithium ion which should have novel structure and a good electrochemical property.
方酸、克酮酸、水杨酸由于含有羟基(邻羟基)，能与B形成大螯合阴离子，从而与锂离子可以组装成许多具有新颖结构和良好电化学性质的锂硼盐电解质。
参考来源 - 含方酸类锂离子电池电解质液态和膜电化学性质研究·2,447,543篇论文数据，部分数据来源于NoteExpress
综述了不对称方酸菁的合成、 中间体的制备、光谱、光导性能以及应用研究。
Recent advance in research on unsymmetric squarine is reviewed, including their synthetic methods, properties and applications.
基于方酸菁染料光稳定性不好、水溶性差等缺点，设计并合成了三个含有酰胺基团的方酸菁染料。
Three squarylium dyes have been designed and synthesized for improving their limited photo-stability and low water-solubility.
针对近红外五甲川菁染料光稳定性差的问题，设计合成系列水溶性方酸菁染料，其中两个不对称染料结构未见报道。
Focus on the poor photostability of pentamethine cyanine dyes, a series of water-soluble squarylium cyanine dyes were synthesized, including two novel asymmetric dyes.
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