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Duan G, Yam VW. Syntheses and Photophysical Properties of
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‐Pyridylimidazol‐2‐ylidene Tetracyanoruthenates(II) and Photochromic Studies of Their Dithienylethene‐Containing Derivatives. Chemistry 2010; 16:12642-9. [DOI: 10.1002/chem.201000880] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gongping Duan
- Centre for Carbon‐Rich Molecular and Nanoscale Metal‐Based Materials Research, Department of Chemistry, HKU‐CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong (P.R. China), Fax: (+852) 2857‐1586
| | - Vivian Wing‐Wah Yam
- Centre for Carbon‐Rich Molecular and Nanoscale Metal‐Based Materials Research, Department of Chemistry, HKU‐CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong (P.R. China), Fax: (+852) 2857‐1586
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52
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Singer M, Jäschke A. Reversibly photoswitchable nucleosides: synthesis and photochromic properties of diarylethene-functionalized 7-deazaadenosine derivatives. J Am Chem Soc 2010; 132:8372-7. [PMID: 20481531 DOI: 10.1021/ja1024782] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Photochromic nucleosides were designed that combine the structural features and molecular recognition properties of nucleic acids with the light-sensitivity of diarylethenes. Target compounds 1a-c consist of a 7-deazaadenosine unit that is linked to a thiophene as the second aryl functionality via a 1,2-cyclopentenyl linker. These nucleoside analogues undergo a reversible electrocyclic rearrangement, generating strongly colored closed-ring isomers upon irradiation with UV-light, while exposure to light in the visible range triggers the cycloreversion to the colorless opened-ring form. UV-vis spectroscopy, HPLC, and (1)H NMR measurements revealed recognition of complementary thymidine and up to 97% conversion to the thermally stable closed-ring isomers after illumination with UV-light. The required wavelength for ring closure was found to vary depending on the substituents attached to the thiophene moiety. In a first design step, we used this important feature of diarylethenes to shift the switching wavelength from initially 300 nm (1a) to 405 nm (1cH(+)). In a second step, we generated a pair of orthogonal switches, differing enough in their respective switching wavelengths to be controlled independently in the same sample. Finally, a molecular switch was developed that showed both photochromism and acidichromism, thereby illustrating the possibility to gate the spectral properties to multiple stimuli. These new photochromic nucleosides represent useful building blocks for the generation of light-sensitive nucleic acids either by inducing conformational changes upon isomerization or by exploring the different spectral properties of the closed and opened isomers, for example, for use as reversible fluorescence quenchers.
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Affiliation(s)
- Marco Singer
- Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, Heidelberg 69120, Germany
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53
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Lin Y, Yin J, Yuan J, Hu M, Li Z, Yu GA, Liu SH. Synthesis, Characterization, and Properties of Binuclear Gold(I) Phosphine Alkynyl Complexes. Organometallics 2010. [DOI: 10.1021/om1000919] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yan Lin
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Jun Yin
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Jingjing Yuan
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Ming Hu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Ziyong Li
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Guang-Ao Yu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
| | - Sheng Hua Liu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P.R. China
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54
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McClure BA, Abrams ER, Rack JJ. Excited State Distortion in Photochromic Ruthenium Sulfoxide Complexes. J Am Chem Soc 2010; 132:5428-36. [DOI: 10.1021/ja9099399] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Beth Anne McClure
- Department of Chemistry and Biochemistry, Nanoscale and Quantum Phenomena Institute, Ohio University, Athens, Ohio 45701
| | - Eric R. Abrams
- Department of Chemistry and Biochemistry, Nanoscale and Quantum Phenomena Institute, Ohio University, Athens, Ohio 45701
| | - Jeffrey J. Rack
- Department of Chemistry and Biochemistry, Nanoscale and Quantum Phenomena Institute, Ohio University, Athens, Ohio 45701
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55
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Luo Q, Liu Y, Li X, Tian H. Facile synthesis and characterization of new photochromic trans-dithienylethenes functionalized with pyridines and fluorenes. Photochem Photobiol Sci 2010; 9:234-8. [PMID: 20126800 DOI: 10.1039/b9pp00088g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three symmetrical and unsymmetrical trans-dithienylethenes functionalized with pyridines and fluorenes have been synthesized by a facile one-pot procedure, and their characteristics and photochromism were investigated. Their fluorescent intensity was efficiently regulated by a photochromic switch using alternative irradiation with UV light and visible light. Moreover, by protonation and complexation, the pyridyl-substituted compounds also showed excellent photoswitching properties with distinguishable color changes. These characteristics are expected to be applicable to potential multi-addressable photoswitch and erasable optical data processing technologies.
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Affiliation(s)
- Qianfu Luo
- Key Lab for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, PR China
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56
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Roberts MN, Carling CJ, Nagle JK, Branda NR, Wolf MO. Successful Bifunctional Photoswitching and Electronic Communication of Two Platinum(II) Acetylide Bridged Dithienylethenes. J Am Chem Soc 2009; 131:16644-5. [DOI: 10.1021/ja907434x] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew N. Roberts
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada, 4D LABS, Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada, and Department of Chemistry, Bowdoin College, Brunswick, Maine 04011
| | - Carl-Johan Carling
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada, 4D LABS, Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada, and Department of Chemistry, Bowdoin College, Brunswick, Maine 04011
| | - Jeffrey K. Nagle
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada, 4D LABS, Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada, and Department of Chemistry, Bowdoin College, Brunswick, Maine 04011
| | - Neil R. Branda
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada, 4D LABS, Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada, and Department of Chemistry, Bowdoin College, Brunswick, Maine 04011
| | - Michael O. Wolf
- Department of Chemistry, University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada, 4D LABS, Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada, and Department of Chemistry, Bowdoin College, Brunswick, Maine 04011
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57
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Zhong YW, Vilà N, Henderson JC, Abruña HD. Transition-Metal Tris-Bipyridines Containing Three Dithienylcyclopentenes: Synthesis, Photochromic, and Electrochromic Properties. Inorg Chem 2009; 48:7080-5. [DOI: 10.1021/ic802272q] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu-Wu Zhong
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301
| | - Neus Vilà
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301
| | - Jay C. Henderson
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301
| | - Héctor D. Abruña
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301
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58
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Bar AK, Chakrabarty R, Chi KW, Batten SR, Mukherjee PS. Synthesis and characterisation of heterometallic molecular triangles using ambidentate linker: self-selection of a single linkage isomer. Dalton Trans 2009:3222-9. [PMID: 19421624 DOI: 10.1039/b900118b] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination driven self-assembly of discrete molecular triangles from a non-symmetric ambidentate linker 5-pyrimidinecarboxylate (5-pmc) and Pd(II)/Pt(II) based 90 degrees acceptors is presented. Despite the possibility of formation of a mixture of isomeric macrocycles (linkage isomers) due to different connectivity of the ambidentate linker, formation of a single and symmetrical linkage isomer in both the cases is an interesting observation. Moreover, the reported macrocycles represent the first example of discrete metallamacrocycles of bridging 5-pmc. While solution composition in both the cases was characterised by multinuclear NMR study and electrospray ionization mass spectrometry (ESI-MS), the identity of the assemblies in the solid state was established by X-ray single crystals structure analysis. Variable temperature NMR study clearly ruled out the formation of any other macrocycles by [4 + 4] or [2 + 2] self-assembly of the reacting components.
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Affiliation(s)
- Arun Kumar Bar
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
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