1400413-24-2Relevant academic research and scientific papers
A two-fold interpenetrated diamondlike 3D metal-organic Cd(II) complex based on 5-Iodo-isophthalic acid and 1,3-Bi(4-pyridyl)propane
Dong, Ming-Ming,Zhu, Deng-Yong,Zhao, Yan,Li, Xiao-Yuan,Zang, Shuang-Quan
, p. 499 - 503 (2012)
A metal-organic framework based on 5-iodo-isophthalic acid (5-iipaH 2) and the ancillary nitrogen ligand 1,3-bi(4- pyridyl)propane (bpp), namely [Cd(5-iipa)(bpp)(H2O)]n (1), has been synthesized, and characterized by IR spectroscopy, elemental analysis, thermogravimetry, and X-ray crystallography. Complex 1 shows a two-fold interpenetrating 3D diamond-like architecture that is stabilized by hydrogen bonding, π ... π, I... π, and C-H... π interactions.
Preparation, structural diversity and characterization of a family of Cd(ii)-organic frameworks
Deng, Ye,Hou, Chuan-Tao,Walton, Richard I.,Tang, Jiaqian,Zhu, Peizhi,Zhang, Kou-Lin,Ng, Seik Weng
, p. 12468 - 12480 (2013/09/02)
Two Cd(ii)-organic frameworks based on 5-iodoisophthalate (IIP 2-), {[Cd(IIP)(bte)(H2O)]·H2O} n (1) and [Cd(IIP)(bpp)(H2O)]n (2), were obtained either at an ambient temperature or under solvothermal conditions at 120°C in the presence of 1,4-bis(1,2,4-triazol-1-yl)ethane (bte) and 1,3-bis(4-pyridyl)propane (bpp) as auxiliary ligands, respectively. 1 is a novel discrete single-walled Cd(ii)-organic tube (SWCOT) which further extends into a 3D supramolecular interdigitated microporous columnar architecture supported by C-I...I halogen bonds and hydrogen bonds, while 2 exhibits an interesting two-fold interpenetrated 3D diamond network architecture. When the auxiliary ligands bte or bpp were replaced by a longer spacer ligand with more flexibility, 1,4-bis(triazol-1-ylmethyl)benzene (bbtz), the unique discrete single-walled Cd(ii)-organic nanotube (SWCONT), {[Cd(IIP)(bbtz)(H 2O)]·H2O}n (3), which further extends into a 3D supramolecular microporous framework supported by face-to-face π...π stacking interactions and hydrogen bonds, was generated at room temperature. Under solvothermal conditions at 120°C, an interesting two-fold 2D embracing (4,4) topological network, [Cd(IIP)(bbtz)(H2O)] (4), which further extends into a two-fold 3D embracing supramolecular framework through O-H...O hydrogen bonds, is obtained. 4 loses crystallinity in air, leading to the formation of [Cd(IIP)(bbtz)]·0.5H2O (4A) evidenced by elemental analysis, thermogravimetric analysis (TGA) and powder X-ray diffraction (PXRD). Remarkably, in situ rapid and reversible dehydration-rehydration in static air occurs in 1-3, indicating their potential applications as water absorbent and sensing materials. Dehydrated 1 and 3 show selective gas adsorption of CO 2 over N2 and dehydrated 3 can adsorb methanol and ethanol vapors strongly. These compounds exhibit blue fluorescence in the solid state.
