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| 1 | Two novel terpyridine-based chromophores with donor-acceptor structural model containing modified triphenylamine moiety: Synthesis, crystal structures and two-photon absorption properties显示文摘Two novel terpyridine-based chromophores with D-A (D = donor, A = acceptor) structural model containing modified triphenylamine moiety (L1 and L2 ) have been conveniently synthesized via formylation and reduction in satisfactory yields, and fully characterized. The single crystals of them were obtained and determined by X-ray diffraction analysis. The relationships between structure and photophysical properties of the two chromophores were investigated both experimentally and theoretically. The measured maximum TPA cross-sections per molecular weight (δmax /MW) of the chromophores are 0.63 GM/(g mol) (L1) and 0.72 GM/(g mol) (L2), respectively, in DMF as a high polar solvent. The results indicate that the value of δmax/MW could be well tuned by the intramolecular charge transfer (ICT), which could be realized by introducing additional elecron-donor/acceptor groups. | LIU Jie ZHANG Qiong DING HongJuan ZHANG Jun TAN JingYun WANG ChuanKui WU JieYing LI ShengLi ZHOU HongPing YANG JiaXiang TIAN YuPeng | 2013 | Science China Chemistry2013，56，9： | 2 |
| 2 | Synthesis, Crystal Structure and Two-photon Absorption Properties of 4′-(N,N-di(4-hydroxymethyl phenyl) amino)phenyl-2,2′:6′,2''-terpyridine显示文摘A novel donor-acceptor(D-A) triphenylamino terpyridine derivative L was facilely synthesized and fully characterized, and its single crystals were obtained and determined by X-ray diffraction analysis. It crystallizes in triclinic, space group P1 with a = 11.760(5), b =12.516(5), c = 12.850(5) , α = 67.141(5), β = 65.284(5), γ = 75.876(5)o, Mr = 621.54, V = 1575.6(11) 3, Z = 2, Dc = 1.310 g/cm3, μ = 0.245 mm-1, F(000) = 648, the final R = 0.0671 and w R = 0.1869 for 11328 observed reflections with Ⅰ > 2σ(Ⅰ). Linear and nonlinear optical properties of terpyridine derivative L were systematically investigated. The maximum two-photon cross-section of L was 382.5 GM(Goeppert-Mayer), measured by two-photon excited fluorescence(TPEF) method. This result demonstrates that the increase of intramolecular charge transfer(ICT) leads to enhanced two-photon absorption(2PA), which could be achieved by introducing additional electron-donor groups to the molecular framework. | 刘杰 王慧 李丹丹 周虹屏 田玉鹏 吴杰颖 | 2015 | Chinese Journal of Structural Chemistry2015，34，3： | 1 |
| 3 | Ba_2TiSi_2O_8晶体的生长及包裹物缺陷分析显示文摘采用提拉法生长了Ba2TiSi2O8(BST)晶体,并采用SEM和EDS等手段对晶体内部包裹物缺陷进行了分析。发现多晶原料中的Na,K,Cl杂质元素的存在是导致晶体内部产生包裹物缺陷的主要诱因,采用低的生长速率和较快的晶体转速有利于获得高质量BTS单晶。另外,本论文还对晶体的硬度和透过光谱进行了测试与分析。 | 刘小凤 魏庆科 喻建兵 胡晓琳 庄乃锋 林树坤 陈建中 | 2013 | 人工晶体学报2013，42，12： | 0 |
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