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A Polar Titanium-Organic Chain with a Very Large Second-Harmonic-Generation Response
- Authors
- Kim, Bongsu; Oh, Seung-Jin; Jo, Hongil; Ok, Kang Min
- Issue Date
- Nov-2016
- Publisher
- AMER CHEMICAL SOC
- Citation
- INORGANIC CHEMISTRY, v.55, no.22, pp 11635 - 11638
- Pages
- 4
- Journal Title
- INORGANIC CHEMISTRY
- Volume
- 55
- Number
- 22
- Start Page
- 11635
- End Page
- 11638
- ISSN
- 0020-1669
1520-510X
- Abstract
- A noncentrosymmetric (NCS) titanium-organic compound, [H2N(CH3)(2)] TiO{[NC5H3(CO2)(2)] [NC5H4(CO2)]} (CAUMOF-18), has been synthesized by a solvothermal reaction. The aligned unidimensional polar chain structure of CAUMOF-18 consisting of corner-shared distorted TiO5N2 pentagonal bipyramids is attributed to strong hydrogen-bonding and pi-pi interactions. CAUMOF-18 reveals a very strong second harmonic -generation efficiency of 400 times that of alpha-SiO2 and is phase-matchable (type I). Water-molecule driven reversible centricity conversion and topotactic transformation to TiO2 microrods for CAUMOF-18 are also presented.
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