Oxocarbons, pseudo-oxocarbons and squaraines

Quimica nova

Oliveira, Vanessa E. de¹  Diniz, Renata¹  Oliveira, Luiz Fernando C. de¹ 

[1] Universidade Federal de Juiz de Fora, Juiz de Fora, Brasil

关键词: oxocarbons;    pseudo-oxocarbons;    squaraines.;   

DOI  :  10.1590/S0100-40422009000700038

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Oxocarbons ionsare cyclic compounds presenting unusual electronic and vibrational properties.These molecules anions possess a high symmetry and degree of electronic delocalization,characteristics that have been discussed in several structural and spectroscopicinvestigations. Compounds in which one or more of the carbonyl oxygen atomsare replaced by other atoms or groups are called pseudo-oxocarbons. Compoundsformed by substitution of the carbonyl groups by nitrogen groups former a newclass named squaraines. Specificity the dicyanomethylene groups are interestingbecause of the possibility of further extension of the electronic delocalizationand a new coordination site. These molecules also present interesting coordinationproperties which make these systems potentially useful in crystal engineeringresearch.

【 授权许可】

CC BY