Synthetic multichromophoric systems exhibiting low energy fluorescent excited states in which the transition dipoles of the pigment building blocks are correlated in defined phase relationships are provided. The polarized nature of these singlet excited states can be maintained over long (ns) timescales. In preferred embodiements ethyne- and butadiyne-bridged multiporphyrin species that manifest high excited-state anisotropies display exceptionally large emitting dipole strengths, establishing a new precedent for superradiant oligopigment assemblies.
                            提供了合成的多色素系统,其低能量荧光激发态中色素构建块的跃迁偶极矩在定义的相位关系下相关。这些单态激发态的极化性质可以在长时间尺度(纳秒)内保持。在优选实施方案中,
乙炔和
丁二炔桥联的多
卟啉物种表现出高激发态各向异性,显示出异常大的发射偶极矩强度,为超辐射寡色素组装开辟了新的先例。