Ogawa Kazuya, Makiuchi Naoyuki, Kobuke Yoshiaki
Graduate School of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan.
Int J Mol Sci. 2012 Dec 21;14(1):322-31. doi: 10.3390/ijms14010322.
A conjugated-bisimidazolylporphyrin bridged by bis(ethynylfluorene) was synthesized and organized into linear polymer through self-coordination having mean molecular weights, M(w) and M(n), of ~2.1 × 105 Da and ~1.6 × 105 Da, respectively. A large two-photon absorption cross section value of 3.4 × 105 GM (per dimer unit) was observed. This value was comparable to that of the previously reported self-assembled linear polymer consisting of butadiyne-bridged imidazolylporphyrins. The two-photon absorption properties could be controlled by tuning the wavelength and absorption intensity of the one-photon absorption.
合成了一种由双（乙炔基芴）桥联的共轭双咪唑基卟啉，并通过自配位将其组装成线性聚合物，其平均分子量M(w)和M(n)分别约为2.1×105 Da和1.6×105 Da。观察到其具有3.4×105 GM（每二聚体单元）的大双光子吸收截面值。该值与先前报道的由丁二炔桥联咪唑基卟啉组成的自组装线性聚合物的值相当。双光子吸收特性可通过调节单光子吸收的波长和吸收强度来控制。
