Pentamethylcyclopentadienyl organoiron(II) hydrazone complexes: Synthesis, spectroscopic characterization, and second-order nonlinear optical properties. X-ray crystal structure of

(η5-Cyclopentadienyl)[(1,2,3,4,4a,10a-η)-1-methylthianthrene]iron(II) hexafluoridophosphate acetone 0.33-solvate

“…The distances from the Fe ion to the Cp plane and to the complexed benzene ring plane are 1.666 (3) and 1.537 (3) Å , respectively, in molecule A, 1.662 (3) and 1.551 (3) Å in B, and 1.648 (4)/1.538 (3) and 1.701 (4)/1.538 (3) Å in the two disorder components of the Cp ring in C. These values are close to those reported in the literature for similar complexes (see, for example, Lynch et al, 1986;Abboud et al, 1990;Pió rko et al, 1995;Fuentealba et al, 2007;Manzur et al, 2007;Jenkins et al, 2008).…”

“…The complexed Cp and benzene rings of (I) are nearly coplanar in all three molecules, with a dihedral angle of 0.2 (5) for molecule A, 2.8 (5) for B, and 2.19 (4) and 6.86 (6) for the disordered Cp ring in C. These values are in the range observed for other thianthrene and dibenzodioxin FeCp complexes in our previous studies (see, for example, Simonsen et al, 1985;Lynch et al, 1986;Abboud et al, 1990Abboud et al, , 1991Christie et al, 1994;Pió rko et al, 1995). The Cp-Febenzene ring centroid vectors are nearly collinear, with angles of 179.65 (8) and 178.42 (7) for molecules A and B, and 178.69 (7) and 176.39 (7) for the disordered Cp ring in C. These values are typically found in the literature for FeCparene complexes (see, for example, Manzur et al, 2000;Fuentealba et al, 2007).…”

Cyclometalated IrIII Complexes with Substituted 1,10‐Phenanthrolines: A New Class of Efficient Cationic Organometallic Second‐Order NLO Chromophores

“…[18] We now report that the nature of the counterion can control the absolute value of mb 1.907 in CH 2 Cl 2 even if working at constant and similar concentration. For instance, for the cations 1 a, 1 b, 2 a, 2 b, 2 e, 2 f, and 5 a, the absolute value of mb 1.907 is lowered, when working in CH 2 Cl 2 at a concentration of 10 À3 m, by a factor of 0.6-0.8 upon substitution of PF 6 À with C 12 H 25 SO 3 À (Table 1).…”

Syntheses and crystal structures of two new cationic 3,5-dimethylpyrazole derivatives containing organoiron mixed-sandwiches as substituent groups

“…Reagents were purchased from commercial sources and used as received. The organometallic hydrazines ½ðg 5 -CpÞFeðg 5 -p-MeC 6 H 4 -NHNH 2 Þ þ PF À 6 ; ½1 þ PF À 6 ; and ½ðg 5 -Cp à ÞFeðg 5 -C 6 H 5 -NHNH 2 Þ þ PF À 6 ; ½2 þ PF À 6 , were synthesized according to procedures we have published elsewhere [4,5]. Elemental analyses were made by standard micromethods.…”