Kumar, H. C. Sampath published the artcileSynthesis And Third-order Nonlinear Optical Studies of Four-Coordinated Copper(I) Complexes, HPLC of Formula: 25753-84-8, the publication is AIP Conference Proceedings (2011), 671-673, database is CAplus.
Three Cu(I) halide complexes [Cu(L)(PPh3)X] (L = 1,10-phenanthroline, X = Cl (1), Br (2) and I (3), PPh3 = triphenylphosphine) have been synthesized and characterized by spectroscopic techniques. Further structure of the complex 1 was confirmed by single crystal X-ray diffraction anal. The nonlinear optical properties of the complexes were investigated at 532 nm using single beam Z-scan technique with nanosecond laser pulses. The complexes showed strong optical limiting behavior due to effective three-photon absorption (3PA). The values of 3PA coefficients (γ) for 1, 2 and 3 were found to be 3.2×10-24 m3/W2, 6.0×10-25 m3/W2 and 1.2×10-23 m3/W2 resp., which are comparable to good optical limiting materials. These studies demonstrate that the Ligand copper coordinative bonds facilitate the polarization of the electronic π-system which optimizes the third-order NLO response in the reported complexes. (c) 2011 American Institute of Physics.
AIP Conference Proceedings published new progress about 25753-84-8. 25753-84-8 belongs to bromides-buliding-blocks, auxiliary class Copper, name is Bromo(1,10-phenanthroline)(triphenylphosphine)copper(I), and the molecular formula is C30H24BrCuN2P, HPLC of Formula: 25753-84-8.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary