Molecular engineering of octupolar tris(bipyridyl) metal complexes

Self-ordered dendrimers based on multi-octupolar ruthenium complexes for quadratic nonlinear optics

“…The b=320 Â 10 À30 esu value for the monomer 1 is far below the previously reported value of the parent molecules using HLS at 1.34 mm [14]. This result clearly confirms the large 2-photon fluorescence contribution to the HLS signal in the visible range.…”

“…Noncentrosymmetric structures can be obtained upon coordination of different ligands to a metal centre. Among the variety of metallo-octupoles studied, tris(dialkylaminostyryl-[2,2 0 ]-bipyridine)zinc(II) or ruthenium(II) complexes exhibit the best trade-off between NLO activity and thermal/chemical stability [14]. Moreover, ruthenium(II) has the ability to form heteroleptic complexes upon sequential coordination of different bipyridyl ligands [15].…”

Vibrational, calorimetric and nonlinear optical studies of melaminium-bis(trichloroacetate) monohydrate molecular–ionic crystal

“…For rather pronounced efficiency, d eff = 3.09d eff (KDP), the melaminium cations may be responsible. These cations belong to so-called octupolar molecules widely described in literature [19][20][21][22][23][24][25][26][27][28][29][30].…”

Heptametallic, Octupolar Nonlinear Optical Chromophores with Six Ferrocenyl Substituents

“…[7] Non-resonant b 0 responses are of most relevance to quadratic NLO applications because these normally require that no light should actually be absorbed. [10] Various other quadratic NLO studies have been carried out with derivatives of [Ru II A C H T U N G T R E N N U N G (bpy) 3 ] 2 + and related complexes of other metals. [8] However, this value is overestimated due to contributions from 2PA-induced luminescence, [9] and later measurements give a smaller (albeit still large) b 0 of 380 10 À30 esu for this complex.…”