A molecular assembly comprising a host metal complex with a space formed therein, and compounds having substituents enclosed in the metal complex within the space and molecular chains bonded to the substituents and extending to the exterior of the metal complex, wherein two or more substituents are enclosed in the same space of the metal complex.
Structures and catalytic oxidative coupling reaction of four Co-MOFs modified with R-isophthalic acid (RH, OH and COOH) and trigonal ligands
作者:Qing Liu、Lin-Yan Zhang、Yu-Mei Bao、Na Zhang、Jian-Yong Zhang、Yuan-Yuan Xing、Wei Deng、Zhen-Jiang Liu
DOI:10.1039/d1ce01221e
日期:——
acid (R-H2BDC, R = H, OH and COOH) along with trigonal n-TBT (n = 3 or 4) as organic ligands. These Co-MOFs are formulated as [Co(1,3-BDC)(4-TBT)2/3]·(H2O)(DMF)1.5}n (Co-MOF-1), [Co(HO-BDC)(4-TBT)]·(EtOH)2(DMF)2}n (Co-MOF-2), [Co(HO-BDC)(4-TBT)2/3]·(H2O)3(MeOH)3(DMA)}n (Co-MOF-3) and [Co3(BTC)2(3-TBT)2(H2O)2]·(H2O)2(EtOH)5(DMA)1.5}n (Co-MOF-4), where H2BDC = isophthalic acid, OH–H2BDC = 5-hydroxyisophthalic
Using a coordinatively unsaturated 16-electron mononuclear ruthenium(II)-pyrazolyl-imidazolyl-pyridine complex [Ru(II)–NNN] as the building block and oligopyridines as the polydentate ligands, pincer-type tri- and hexanuclear ruthenium(II) complexes [Ru(II)–NNNN]n were efficiently assembled. These complexes were characterized by elemental analyses, NMR, IR, and MALDI-TOF mass spectroscopies. In refluxing
使用配位不饱和的16电子单核钌(II)-吡唑基-咪唑基-吡啶复合物[Ru(II)–NNN]作为结构单元,并以低聚吡啶为多齿配体,夹型三和六核钌(II)配合物[Ru(II)–NNNN] n被有效地组装。这些配合物的特征在于元素分析,NMR,IR和MALDI-TOF质谱。在回流的2-丙醇中,多核钌(II)-NNNN络合物在极低的浓度下对酮的转移加氢显示出异常高的催化活性,并达到高达7.1×10 6 h –1的周转频率(TOF)。具有多种Ru(II)-NNNN功能的显着协同作用。DFT计算揭示了这些Ru(II)-NNNN配合物具有高催化活性的起源。
Two Photochromic Complexes Assembled by a Nonphotochromic Ligand: Photogenerated Radical Enhanced Room-Temperature Phosphorescence
作者:Wu-Ji Wei、Ying Mu、Li Wei、Ji-Xiang Hu、Guo-Ming Wang
DOI:10.1021/acs.inorgchem.0c02463
日期:2021.1.4
Stimulating tunable room-temperature phosphorescence (RTP) is still a challenge in photochromic systems, which is vital for multifunctional coordination materials. Herein, we synthesized two newphotochromic chain complexes through self-assembly of the nonphotochromic 1,3,5-tris(4-pyridyl)benzene ligand, diphosphonate, and Ln(III) ions (1 for Ln(III) = Dy and 2 for Ln(III) = Gd). Both compounds showed
Demethylenation of Cyclopropanes via Photoinduced Guest‐to‐Host Electron Transfer in an M
<sub>6</sub>
L
<sub>4</sub>
Cage
作者:William Cullen、Hiroki Takezawa、Makoto Fujita
DOI:10.1002/anie.201904752
日期:2019.7
Unusual demethylenation reactions of cyclopropanes under UV‐light irradiation were found within a cavity of a photoactive coordination cage. The reaction proceeded via a guest‐to‐host electron transfer owing to the highly electron‐deficient nature of the cage. The reactions were highly chemoselective and enabled late‐stage derivatization of a steroid molecule, which led to a totally new un‐natural