Tetra- and poly-nuclear Cd(ii) complexes of an N(3)O(4)Schiff base ligand: crystal structures, electrical conductivity and photoswitching properties

Ghosh Tanmoy Kumar; Jana Sumanta; Jana Subrata; Ghosh Ashutosh

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Tetra- and poly-nuclear Cd(ii) complexes of an N(3)O(4)Schiff base ligand: crystal structures, electrical conductivity and photoswitching properties

机译：N（3）O（4）Schiff碱配体：晶体结构，电导率和光学开关性能的四核和聚核CD（II）复合物

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Two new Cd(ii) complexes, [Cd4L2(NO3)(2)(mu(1,1)-N-3)(2)(CH3OH)(2)] (1) and {[Cd2L(IPA)](2)center dot(CH3OH)}(n)(2), have been synthesized by using a multidentate Schiff base ligand H2L (N,N '-bis(3-methoxysalicylidene)-diethylenetriamine) and two bridging co-ligands azide and isophthalic acid (IPA), respectively. Single crystal structure analysis shows that complex1has a tetranuclear structure whereas complex2forms a 1D polymer. The photoswitching behavior of both complexes has been measured under 1 Sun illumination. A significant enhancement of frequency similar to 65 Hz was observed for complex2, but for complex1no such enhancement was detected. To gain a detailed understanding about the charge transport mechanism of the complexes, the effective carrier mobility, transit time, carrier concentration and diffusion length have been estimated considering Schottky Barrier Diode (SBD) characteristics. The charge transport properties of complex2were found to be superior to complex1. Complex2showed increased conductivity from 5.4 x 10(-8)S cm(-1)to 135 x 10(-8)S cm(-1)in the presence of light.

机译：两种新的CD（II）配合物，[CD4L2（NO 3）（2）（2）（MU（1,1）-N-3）（2）（2）（2）（2）（2））]（1）和{[CD2L（IPA）]（ 2）中心点（CH3OH）}（n）（2）通过使用多齿席夫碱配体H 2L（N，N'-BIS（3-甲氧基甲苯） - 二亚甲基三胺）和两个桥接共配体叠氮化物和间苯二甲酸盐分别酸（IPA）。单晶结构分析表明，复合体1HAS四核结构，而复合物2FormS 1D聚合物。两种复合物的照片开关行为已经在1个太阳照明下测量。对于复合物2，观察到与65Hz相似的频率显着提高，但对于复杂的1nO，检测到这种增强。为了详细了解复合物的电荷传输机制，考虑到肖特基势垒二极管（SBD）特性，估计了有效的载流动性，过渡时间，载流子浓度和扩散长度。 Complex2were的电荷传输性能发现优于复杂1。在光的情况下，复合体发出5.4×10（-8）至135×10（-8）厘米（-1）的电导率。

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《New Journal of Chemistry》 |2020年第34期|共11页
作者
Ghosh Tanmoy Kumar; Jana Sumanta; Jana Subrata; Ghosh Ashutosh;
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Univ Calcutta Univ Coll Sci Dept Chem 92 APC Rd Kolkata 700009 India;

Jadavpur Univ Dept Chem Kolkata 700032 India;

Univ Calcutta Univ Coll Sci Dept Chem 92 APC Rd Kolkata 700009 India;

Univ Calcutta Univ Coll Sci Dept Chem 92 APC Rd Kolkata 700009 India;

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1. Tetra- and poly-nuclear Cd(ii) complexes of an N(3)O(4)Schiff base ligand: crystal structures, electrical conductivity and photoswitching properties [J] . Ghosh Tanmoy Kumar, Jana Sumanta, Jana Subrata, New Journal of Chemistry . 2020,第34期

机译：N（3）O（4）Schiff碱配体：晶体结构，电导率和光学开关性能的四核和聚核CD（II）复合物
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3. Synthesis, structure and optical limiting property of Co-II, Mn-II and Cd-II complexes with di-Schiff base and reduced di-Schiff base ligands [J] . Kong LY, Li ZW, Okamura T, Chemical Physics Letters . 2005,第1a3期

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Tetra- and poly-nuclear Cd(ii) complexes of an N(3)O(4)Schiff base ligand: crystal structures, electrical conductivity and photoswitching properties

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