锰(II)-戊二酮多环配合物的合成与光漂白性能

Synthesis of Mn(II)-Bispidone Complex and Its Photobleaching Performance

摘要: 1,3 丙酮二羧酸二甲酯与吡啶 2 甲醛、甲醛、甲胺经Mannich反应生成了一种含戊二酮单元的刚性多环化合物2,4 二(2 吡啶基) 3,7 二氮杂双环［3.3.1］壬烷 N,N 二甲基 1,5 二甲酸甲酯，其结构经1H NMR和MS表征。该化合物为配体与锰(II)离子络合，反应得到一种锰(II)配合物，通过紫外吸收光谱表明，锰(II)配合物在233~286 nm范围内有较强的吸收，最大吸收峰为258 nm；光漂白测试的结果表明，锰(II)配合物与洗涤剂的质量比为0.1%~0.3%时，在10~30 °C的温度范围内经洗涤和光照，可去除棉布上的红墨水污渍。

Abstract: A rigid bispidone, 2,4 bis (2 pyridin) 3,7 diazabicyclo［3.3.1］nonane N,N 1,5 dicarboxylate was synthesized by acetone 1,3 dicarboxylate, 2 picolylamine, methylamine and formaldehyde via Mannich reactions. The bispidone was characterized by 1H NMR and MS, and was further combined with Mn(II)Cl2 to afford a manganese(II) complex. The UV vis spectrum of the complex showed a strong absorption at the range of 233—286 nm, and the maximum was at 258 nm. When the complex was used together with a certain amount of detergent, it could well bleach the red ink stains on cotton textile. The results indicated that the complex could perform a favorable photobleaching effect on a low mass fraction (0.1%—0.3%), a low washing temperature (10—30 °C) with sunshine.