Stereoselectivity in electron transfer reactions involving metal ion complexes

Synthesis, Crystal Structure and NLO Properties of a Novel Ruthenium(II) Complex with Unusual Coordination Mode

“…Due to electronic extensive delocalization in the complex molecule, Z-scan measurement results revealed that the complex exhibits an obviously stronger two-photon absorption than that of the free ligand, which provided a valuable reference for rational design and synthesizing materials with a big t.p.a. cross-section r and big third-order nonlinear coefficient v (3) . …”

“…The results are displayed in Table 4. The third-order nonlinear coefficient v (3) value of some material can be expressed as v ð3Þ ¼ ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi ðRev ð3Þ Þ 2 þ ðImv ð3Þ Þ 2 q Rev (3) = 2n 0 2 e 0 cc, Imv (3) = n 0 2 e 0 c 2 b/x, where n 0 is the linear refractive index, e 0 is the dielectric constant in vacuum, c is the speed of light in a vacuum, x is the circle frequency of the laser, c is the molecular secondorder hyperpolarizability, and b is the two-photon absorption (t.p.a) coefficient. Without considering nonlinear absorption, the magnitude and sign of c can be determined by the closed aperture Z-scan curve, which can be fitted to:…”

“…Ruthenium polypyridyl complexes have been attractive candidates for photochemical devices [2], photocatalysts for redox and stereoselective reactions [3], molecular switches [4], model systems for studies of nitrogen fixation [5], and DNA recognition and binding [6]. So there has been much research into the synthesis and property studies of Ru polypyridyl complexes [7].…”

Outer‐Sphere Redox Reactions Leading to the Formation of Discrete CoIII/FeII Pyrazine‐Bridged Mixed‐Valence Compounds

“…[8,11] These systems are a clear example of the importance of nonelectrostatic interactions in outer-sphere complex formation; they appear even between species with high charges of the same sign [12] that are able to tune the reactivity of {Oxd 1 ;Red 2 } species. [13][14][15] We have been involved in the kinetic and mechanistic study of the outer-sphere redox processes between [Fe II -(CN) 6 ] 4-(Scheme 1, Red 2 ) and Co III or Cr III complexes of pentadentate macrocyclic (N) 5 ligands (Scheme 1, Oxd 1 ). [10,[16][17][18] In these studies the careful tuning of both the reactants and reaction conditions has been possible, and the characterization of a large family of molecular di-, triand tetranuclear discrete mixed-valence (electron donor-acceptor) cyano-bridged Co III /Fe II and Cr III /Fe II has been accomplished.…”

Self-assembly of DMF with chloromethane and their structures: a theoretical study

“…[5][6][7][8][9]. Intermolecular interaction plays an important role in forming stable complexes, designing new medicines, constructing new materials, and performing molecular self-assembly and molecular recognition [10][11][12][13][14]. Therefore, it is of great value to study the character and mechanism of interaction among molecules.…”