Synthesis and second-order nonlinear optical properties of new bipyridyl metal complexes

Dipolar and Non-Dipolar Pyridine and Bipyridine Metal Complexes for Nonlinear Optics

“…[53] [57] A selection of optical and generation of the amphiphilic tris(2,2Ј-bipyridyl)ruthenium(II) complex 12 in a Langmuir-Blodgett film (Figure 3). nonlinear optical data are displayed in Table 1.…”

“…[53] [54] These ligands are easily available a LUMO which is a π* orbital of the diimine ligands. This transition has been termed by the authors as "charge-trans-from 4,4Ј-dimethyl-2,2Ј-bipyridine.…”

Synthesis, Crystal Structure, and Second-Order Nonlinear Optical Properties of a New Bis(salicylaldiminato)nickel(II) Metal Complex

“…1b, 4 More recently, organometallic molecules also have been investigated, 5-11 but very few studies have been devoted to inorganic complexes. [12][13][14][15][16][17][18] Compared to the more common organic molecules, these complexes offer a large variety of novel structures, the possibility of enhanced thermal stability, and a diversity of tunable electronic behaviors by virtue of the coordinated metal center which might bring about NLO materials with unique characteristics such as magnetic and electrochemical properties. 19, 20 The present paper reports on a new thermally stable donor-acceptor bis(salicylaldiminato)nickel(II) complex (Scheme 1, complex I), exhibiting a large quadratic hyperpolarizability.…”

The chiral Zn(II)–Na(I) coordination polymer: Synthesis, crystal structure, thermal and optical properties

“…For the second-harmonic-generation the interesting metal ions are Zn(II), Cd(II) and Hg(II) because of the lack of d-d transitions [20,[28][29][30][31][32]. Among them the Zn(II) compounds generally exhibit the largest hyperpolarizability [31,32].…”

“…For the second-harmonic-generation the interesting metal ions are Zn(II), Cd(II) and Hg(II) because of the lack of d-d transitions [20,[28][29][30][31][32]. Among them the Zn(II) compounds generally exhibit the largest hyperpolarizability [31,32].Thus it was previously reported that square-pyramidal coordination compounds, L Á Zn(acac) 2 , have a high probability to form non-centrosymmetric crystals [33]. Later Anthony and Radhakrishnan have presented the screw shaped asymmetric L Á Zn(acac) 2 crystals which formed in perfect assembly by selfpoling [34].…”