Synthetic substituted boronates of dihydroxy-bacteriochlorin absorbing and emitting far-red to near-infrared light as bacteriopheophytin-a analogs
作者:Daichi Funakoshi、Yosaku Nomura、Sunao Shoji、Hitoshi Tamiaki
DOI:10.1016/j.dyepig.2019.108155
日期:2020.4
semisynthetic bacteriochlorins are less oxidizable to chlorins and more readily available from natural phototrophs than the above natural bacteriochlorin, while the formers show similar optical properties in solution as the latter. All the boronate pigments efficiently absorb near ultraviolet, green, and far-red light and strongly emit light in a far-red to near-infrared region. Their electronic absorption
甲基的取代数硼酸盐顺式-7,8-二羟基- pyrobacteriopheophorbide-一个具有相同的3-乙酰基13 1 -氧代菌绿素的π共轭系统如bacteriopheophytin-一个在不产氧光合细菌II型反应中心发现制备通过化学修饰叶绿素a。与上述天然细菌绿素相比,半合成细菌绿素氧化成二氢卟酚的可能性更小,并且更容易从天然营养养分中获得,而前者在溶液中显示出与后者相似的光学性质。所有的硼酸酯颜料都有效吸收近紫外,绿和远红光,并在远红至近红外区域强烈发射光。它们的电子吸收和荧光发射数据几乎与硼原子上的烷基和(杂)芳族取代基无关。