89972-76-9Relevant articles and documents
Connecting BINOL and terpyridine: The electronic effects of the linkage
Huang, Zeng,Chen, Xi,Zhang, Jing,Yu, Xiao-Qi,Pu, Lin
, p. 5497 - 5500 (2011)
1,1′-Bi-2-naphthol and terpyridine are covalently connected either directly or through different linkers. It is found that in contrast to the directly connected one, when the saturated methyleneoxy linker is used, there is inefficient electronic communica
Bile acid-terpyridine conjugates: Steroidal skeleton controlled AIE effect and metal-tunable fluorescence and supramolecular assembly properties
Liu, Chao,Zhang, Kaiyu,Sun, Qinxing,Li, Weina
, (2020)
Herein, a series of conjugates combining bile acid and terpyridine units were developed. Based on the unique rigid skeleton and excellent amphiphilicity of bile acid fragment, the aggregation properties of three conjugates are finely regulated and the resulted aggregates can strongly confine and tune the rotation of terpyridine units to endow the three conjugates with excellent different AIE properties. Furthermore, with the excellent metal coordination properties, terpyridine units endow the conjugates with excellent metal response properties and lead to various colourful complexes. The supramolecular assembly morphology can also be well controlled by the metal ions. These biological conjugates with controllable AIE properties and metal tunable fluorescence and supramolecular assembly properties may provide a new avenue for the bioimaging and drug controllable delivery system.
Unique magnetic behaviour of coexistence of single ion magnet and spin crossover
Feng, Xuefeng,Yang, Lixiao,Luo, Feng
, p. 10 - 15 (2019)
Herein, we report a highly rare magnetic phenomenon that is composed of both single ion magnet and spin crossover. To our knowledge, the current single ion magnet exists in a unique manner as it should be the first one only coordinated by carboxylate liga
A Heterogeneous Photocatalytic Hydrogen Evolution Dyad: [(tpy
Zhao, Weiwei,Huang, Yi,Liu, Yang,Cao, Liming,Zhang, Fang,Guo, Yamei,Zhang, Bin
, p. 15049 - 15057 (2016)
The development of an artificial heterogeneous dyad by covalently anchoring a hydrogen-evolving molecule catalyst to a semiconductor photosensitizer through a bridging ligand is highly challenging. Herein, we adopt the inorganic–organic hybrid CdS–DETA NSs (DETA=diethylenetriamine, NSs=nanosheets) as initial matrix to successfully construct an imine bond (-CH=N-) linked heterogeneous dyad [CdS?N=CH?Ni] through the condensation reaction between the amino groups of CdS–DETA and the aldehyde group of the water reduction molecular catalyst, [(tpy-CHO)2Ni]Cl2(tpy=terpyridine). The [CdS?N=CH?Ni] enables a turnover number (TON) of about 43 815 versus Ni catalysts and an initial turnover frequency (TOF) of approximately 0.47 s?1in 26 h under visible-light irradiation (λ>420 nm). The apparent quantum yield (AQY) reaches (9.9±0.8) % at 420 nm. Under optical conditions, the [CdS?N=CH?Ni] can achieve a considerable amount of hydrogen production, 507.1±27 μmol H2for 6 h, which is 1.27 times that generated from the mechanically mixed system of CdS–DETA NSs and [(tpy-CH=NR)2Ni]Cl2(III) under otherwise identical conditions. Furthermore, its TON value based on Ni species is also higher than that of the mixed system of CdS–DETA and III.
Self-Assembly of Metallo-Supramolecules with Dissymmetrical Ligands and Characterization by Scanning Tunneling Microscopy
Shi, Junjuan,Li, Yiming,Jiang, Xin,Yu, Hao,Li, Jiaqi,Zhang, Houyu,Trainer, Daniel J.,Hla, Saw Wai,Wang, Heng,Wang, Ming,Li, Xiaopeng
supporting information, p. 1224 - 1234 (2021/01/25)
Asymmetrical and dissymmetrical structures are widespread and play a critical role in nature and life systems. In the field of metallo-supramolecular assemblies, it is still in its infancy for constructing artificial architectures using dissymmetrical bui
Living Long and Prosperous: Productive Intraligand Charge-Transfer States from a Rhenium(I) Terpyridine Photosensitizer with Enhanced Light Absorption
Fernández-Terán, Ricardo,Sévery, Laurent
supporting information, p. 1334 - 1343 (2020/10/09)
The ground- and excited-state properties of six rhenium(I) κ2N-tricarbonyl complexes with 4′-(4-substituted-phenyl)terpyridine ligands bearing substituents of different electron-donating abilities were evaluated. Significant modulation of the electrochemical potentials and a nearly 4-fold variation of the triplet metal-to-ligand charge-transfer (3MLCT) lifetimes were observed upon going from CN to OMe. With the more electron-donating NMe2group, we observed in the κ2N complex the appearance of a very strong absorption band, red-shifted by ca. 100 nm with respect to the other complexes. This was accompanied by a dramatic enhancement of the excited-state lifetime (380 vs 1.5 ns), and a character change from 3MLCT to intraligand charge transfer (3ILCT), despite the remote location of the substituent. The dynamics and character of the excited states of all complexes were assigned by combining transient IR spectroscopy, IR spectroelectrochemistry, and (time-dependent) density functional theory calculations. Selected complexes were evaluated as photosensitizers for hydrogen production, with the κ2N-NMe2complex resulting in a stable and efficient photocatalytic system reaching TONRevalues of over 2100, representing the first application of the 3ILCT state of a rhenium(I) carbonyl complex in a stable photocatalytic system.
