Synthesis, structure and optical limiting effect of two new nickel complexes containing strongly bound geometrically fixed multi‐sulfur 1,2‐dithiolene ligands showing remarkable near‐IR absorption

Bai, Junfeng; Zuo, Jing‐Lin; Tan, Wei; Ji, Wei; Shen, Zhen; Fun, Hoong‐Kun; Chinnakali, K.; Razak, Ibrahim Abdul; You, Xiao‐Zeng; Che, Chi‐Ming

doi:10.1039/a902295c

Cited by 60 publications

(32 citation statements)

References 22 publications

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“…Extensive electronic structure and spectroscopic studies of metallo-bis(dithiolenes) have been undertaken as a result of their potential involvement in electrically conducting (115,116,142,145,146,201,202,270,359,(361)(362)(363) and optoelectronic device technologies (113,119,160,248,(364)(365)(366)(367)(368)(369)(370)(371)(372)(373)(374), as well as their presence in the active sites of certain pyranopterin Mo and pyranopterin W enzymes (11, 13, 17, 19, 27, 28, 36, 45- There have been a considerable number of MO calculations performed on four-coordinate square-planar metallo-bis(dithiolene) complexes at various levels of theory (283,327,328,(379)(380)(381)(382)(383)(384). The most important differences in the results of these various calculations rests in the energy level ordering of the valence MOs as well as the degree of metal-sulfur covalency.…”

Section: Metallo-bis(dithiolenes)mentioning

confidence: 99%

The Electronic Structure and Spectroscopy of Metallo‐Dithiolene Complexes

Kirk

McNaughton

Helton

2003

Progress in Inorganic Chemistry

119

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Section: Metallo-bis(dithiolenes)mentioning

confidence: 99%

The Electronic Structure and Spectroscopy of Metallo‐Dithiolene Complexes

Kirk

McNaughton

Helton

2003

Progress in Inorganic Chemistry

119

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“…The work for the third-order NLO molecule-based materials are mostly on metallocenes, metal containing acetylide polymers, phthalocyaninato metal complexes and metal dithiolene complexes [41. Chinese Science Bulletin Vol. 46 A series of new nickel complexes with multi-sulfur 1,Zdithiolene ligands have been synthesized through altering the metal ions and substituents. Using Z-scan techniques, the third-order susceptibility X(3' at 532 nm for these complexes have been determined to be of the order of lo-" esu1401 (table 1).…”

Section: --mentioning

confidence: 99%

“…Transcription initiation and nucleosome remodelingBefore the transcription initiation, the interphase chromatin must undergo a structural modulation to turn Chinese Science Bulletin Vol 46. No.…”

mentioning

confidence: 99%

Chemical studies on the nonlinear optics of coordination compounds

Zuo

You

2001

Chin.Sci.Bull.

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The exploration of molecule-based nonlinear optical (NLO) materials at the molecular level is one of the novel areas developed recently from the viewpoint of chemistry. This review summarizes some of our recent researches (Continued frorn pnge 177) of polyketide synthase genes and combinatiorial biosynthesis'"', have provided a new way to obtain novel antibiotics.From the early 1990s, studies on molecular genetics of Streptomyces differentiation have been carried out in our laboratory. A number of morphological differentiation mutants and the block mutants of antibiotic biosynthesis have been isolated, and the transform system of Streptomyces ansochromogenes was established. In recent years, we have carried out extensive studies on the expression and regulation of genes located on downstream of two promoters (PTH4 and P~~~~~) '~~'~~' .UP to now, the physical map and a cosmid library of Streptomyces ansochromogenes have been constructed. The entire gene cluster involved in nikkomycin biosynthesis has been cloned and the whole sequence will be finished in the near future. Studies on the function of sawA, sawB and sawF revealed that they are all essential for the nikkomycin biosynthesis~ '41 . Moreover, a series of morphological differential genes, sawl, sawB, sawC, sawD and sum@, have been also cloned in our laboratory and the functions of them in the differential process have been r e~e a l e d "~~. In order to reveal the molecular mechanism of gene expression and regulation in Streptomyces differentiation, it is necessary to clone more genes and study their structure and function by means of molecular biological method. It can be helpful to understanding the nature of life phenomenon and to providing important theoretical evidence for improving antibiotic producer and developing new bioactive compounds concerning the clarification of the interactions between morphological differentiation and antibiotic biosynthesis.

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“…The π-electron delocalization ____________________ in these conjugated systems can also contribute to an ultrafast optical response capability and large third-order nonlinearity effects. Recently, many of dmit complexes have been reported as possessing good third-order NLO properties [10][11][12][13][14][15][16]. Along with these researches, a novel metal-dmit complex, bis(tetrabutylammonium)bis(2-thioxo-1,3-dithiole-4,5-dithiolato) mercurate(II), TBAMDT, has been prepared and its crystal structure has been reported very recently [17].…”

Section: Introductionmentioning

confidence: 99%

Preparation, physicochemical and third order nonlinear optical properties of bis(tetrabutylammonium)bis(2‐thioxo‐1,3‐dithiole‐4,5‐dithiolato)mercurate(II)

Wang¹,

Sun

Yang

et al. 2009

Cryst. Res. Technol.

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Bis(tetrabutylammonium)bis(2-thioxo-1,3-dithiole-4,5-dithiolato)mercurate(II) was prepared and characterized by elemental analyses, electronic absorption, infrared and X-ray powder diffraction spectroscopy. The specific heat of the crystal was measured to be 1878.2 J.molK -1 at 300 K. The thermal decomposition process was investigated by means of thermogravimetric analysis and differential thermal analysis measurements in air together with infrared and X-ray powder diffraction spectra. The third-order nonlinear optical properties at 800 nm were measured by femtosecond optical Kerr gate technique by using CS 2 as reference. The third-order optical susceptibility of its acetone solution at the concentration of 9.27×10 -4 M was obtained to be 2.53×10 -14 esu. The second-order hyperpolarizability was estimated to be 1.7×10 -32 esu and the response time was about 226 fs. The third order nonlinear optical properties at 532 nm were investigated by using the Z-scan technique with 20 ps. It exhibited self-focusing effect and saturable absorption. The second molecular hyperpolarizability was estimated to be 8.4×10-32 esu.

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Synthesis, structure and optical limiting effect of two new nickel complexes containing strongly bound geometrically fixed multi‐sulfur 1,2‐dithiolene ligands showing remarkable near‐IR absorption

Cited by 60 publications

References 22 publications

The Electronic Structure and Spectroscopy of Metallo‐Dithiolene Complexes

The Electronic Structure and Spectroscopy of Metallo‐Dithiolene Complexes

Chemical studies on the nonlinear optics of coordination compounds

Preparation, physicochemical and third order nonlinear optical properties of bis(tetrabutylammonium)bis(2‐thioxo‐1,3‐dithiole‐4,5‐dithiolato)mercurate(II)

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