ABAB Homoleptic Bis(phthalocyaninato)lutetium(III) Complex: Toward the Real Octupolar Cube and Giant Quadratic Hyperpolarizability

• DOI: 10.1021/ja211064a
• Publication Date: 2012-02-06T16:20:23Z
• Authors: Mehmet Menaf Ayhan; Anu Singh; Catherine Hirel; Ayşe Gül Gürek; Vefa Ahsen; Erwann Jeanneau; Isabelle Ledoux-Rak; Joseph Zyss; Chantal Andraud; Yann Bretonnière
• Keywords: Hyperpolarizability; Lutetium; Homoleptic; Acceptor

The concept of octupolar molecules has considerably enlarged the engineering second-order nonlinear optical materials by giving access to 2D and 3D architectures. However, if archetype symmetry is a cube with alternating donor acceptor groups at corners, no translation this ideal structure into real molecule been realized date. This may be achieved designing bis(phthalocyaninato)lutetium(III) double-decker complex crosswise ABAB phthalocyanine bearing electron-donor electron-acceptor groups. In communication, we present first step toward goal synthesis, crystal determination, measurement molecular first-order hyperpolarizability β harmonic light diffusion, an original lutetium(III) sandwich displaying required ABAB-type alternation for one face cube. characterized intense absorption in near-IR due intervalence transition exhibits highest quadratic ever reported molecule, √<β(2)(HLS)> = 5750 × 10(-30) esu.