35107-78-9Relevant academic research and scientific papers
Optical properties of disilane-bridged donor - Acceptor architectures: Strong effect of substituents on fluorescence and nonlinear optical properties
Shimada, Masaki,Yamanoi, Yoshinori,Matsushita, Tomonori,Kondo, Takashi,Nishibori, Eiji,Hatakeyama, Akari,Sugimoto, Kunihisa,Nishihara, Hiroshi
, p. 1024 - 1027 (2015)
A series of disilane-bridged donor-acceptor architectures 1-9 containing strong electron-donating and -withdrawing substituents were designed and synthesized in acceptable yields. The substituents substantially affected the fluorescence and nonlinear optical properties of the compounds. In the solid state, the compounds showed purple-blue fluorescence (λem = 360-420 nm) with high quantum yields (up to 0.81). Compound 3, which had p-N,N-dimethylamino and o-cyano substituents, exhibited optical second harmonic generation (activity 2.9 times that of urea, calculated molecular hyperpolarizability β = 1.6 × 10-30 esu) in the powder state. Density functional theory calculations for the ground and excited states indicated that both the locally excited state and the intramolecular charge transfer excited state make important contributions to the luminescence behavior.
Disilanylene-bridged BODIPY-based D-σ-A architectures: a novel promising series of NLO chromophores
Zheng, Xianghui,Du, Wei,Gai, Lizhi,Xiao, Xuqiong,Li, Zhifang,Xu, Liwen,Tian, Yupeng,Kira, Mitsuo,Lu, Hua
supporting information, p. 8834 - 8837 (2018/08/17)
The synthesis and optical properties of a novel series of disilanylene-bridged BODIPY-based D-σ-A chromophores are reported. Si-Si σ-electrons are useful and impressible for tunable optical properties. The electron-donating group facilitates enhancement of the CT nature of the excited state through σ(Si-Si) orbital, leading to the remarkable two-photon absorption cross-sections.
