25118-34-7Relevant academic research and scientific papers
Highly luminescent palladium(II) complexes with sub-millisecond blue to green phosphorescent excited states. Photocatalysis and highly efficient PSF-OLEDs
Chow, Pui-Keong,Cheng, Gang,Tong, Glenna So Ming,Ma, Chensheng,Kwok, Wai-Ming,Ang, Wai-Hung,Chung, Clive Yik-Sham,Yang, Chen,Wang, Feng,Che, Chi-Ming
, p. 6083 - 6098 (2016)
Palladium(ii) complexes supported by tetradentate [N^C^C^N] and [O^N^C^N] ligand systems display sky blue to red phosphorescence with emission quantum yields and emission lifetimes up to 0.64 and 272 μs, respectively. Femtosecond time-resolved fluorescenc
Metal-organic framework composites with luminescent pincer platinum(II) complexes: 3MMLCT emission and photoinduced dehydrogenation catalysis
Sun, Chun-Yi,To, Wai-Pong,Hung, Faan-Fung,Wang, Xin-Long,Su, Zhong-Min,Che, Chi-Ming
, p. 2357 - 2364 (2018/03/05)
Pincer platinum(ii) complexes are well documented to exhibit weak intermolecular interactions in the solid state and 77 K glassy solutions, leading to emissive triplet metal-metal-to-ligand charge transfer (3MMLCT) excited states that often vanish in dilute solutions. In this work, metal-organic framework (MOF) materials are introduced to provide a "solid solution" environment for easy access to 3MMLCT excited states of pincer platinum(ii) complexes. Phosphorescent composites PtII@MOFs (1-4) with matrix-dependent monomers and oligomer emission properties were obtained. These PtII@MOFs are efficient catalysts for photoinduced dehydrogenation reactions.
Metal-organic framework composites with luminescent gold(iii) complexes. Strongly emissive and long-lived excited states in open air and photo-catalysis
Sun, Chun-Yi,To, Wai-Pong,Wang, Xin-Long,Chan, Kaai-Tung,Su, Zhong-Min,Che, Chi-Ming
, p. 7105 - 7111 (2015/11/17)
The encapsulation of luminescent gold(iii) complexes by metal-organic frameworks (MOFs) lays the groundwork for new phosphorescent materials with activities that are not readily achieved by the host MOF materials or gold(iii) complexes alone. In this work, strong phosphorescence with lifetimes of up to ～50 μs in open air at room temperature has been achieved by incorporation of cationic cyclometalated gold(iii) complexes into MOFs with anionic frameworks to form AuIII@MOFs. The AuIII@MOFs display solid state two-photon-induced phosphorescence. Photo-reduction of methyl viologen to the reduced radical was achieved inside AuIII@MOFs and in the presence of Et3N upon excitation at λ > 370 nm under ambient conditions. These AuIII@MOFs comprise a class of reusable and size-selective heterogeneous photo-catalysts for the aerobic oxidation of secondary amines to imines as well as five other reactions, including oxidative C-H functionalization under aerobic conditions.
Photoredox transformations with dimeric gold complexes
Revol, Guillaume,McCallum, Terry,Morin, Mathieu,Gagosz, Fabien,Barriault, Louis
supporting information, p. 13342 - 13345 (2014/01/06)
Let the sunshine in! Unactivated alkyl and aryl bromides underwent a light-enabled reductive radical cyclization in the presence of a dimeric phosphine-gold complex as a photocatalyst (see scheme; X=C(CO 2Et)2, NR, O). Sunlight can be used as the energy source for this simple and efficient radical reaction, which does not require potentially hazardous and toxic chemical reagents, such as organostannanes and chemical initiators.
Stereochemistry of Decarbalkoxylation of Cyclic Geminal Diesters Effected by Water and Lithium Chloride in Me2SO
Krapcho, A. Paul,Weimaster, John F.
, p. 4105 - 4111 (2007/10/02)
The stereochemical consequences of the decarbalkoxylation of cyclic geminal diesters by LiCl-H2O-Me2SO have been examined.The norbornene diester 13 and the norbornane diester 16 lead predominantly to the exoesters 14 and 17, respectively.The 2-methylcyclohexane diester 22 leads to esters containing more cis (23) than trans (24) isomer.The diesters 19,25, and 28 lead to nearly equal amounts of the cis and trans esters.In these latter cases,the enolates generated from the esters (via LDA) are protonated in a nonstereoselective fashion on quenching with water.This is suggestive of an enolate intermediate in the decarbalkoxylation reaction.The implications of these sterochemical results are discussed.
