The crystal structure of 4-methyl-2,6-dibenzoylphenol and its conversion into a mononuclear cobalt(III) complex by treatment with cobalt(II) chloride and propane-1,3-diamine

Synthesis, characterization, spectroscopic and crystallographic investigation of Cobalt(III) schiff base complex with two perpendicular diamine coumarin ligands

“…The dimensions in the shift base correspond closely to standard values [36] except for the bonds C9-C8, C9-C10 and C10-C5, where C9-C10, a double bond, is longer (at 1.414(9) Ǻ) than the expected 1.340Ǻ, C10-C5 is longer (at 1.447(10) Ǻ) than the expected 1.440 Ǻ, and C9-C8 is shorter (at 1.456(9) Ǻ) than the expected 1.465 Ǻ.…”

(E)-6-Chloro-2-(furan-2-ylmethylidene)-2,3,4,9-tetrahydro-1H-carbazol-1-one

“…As part of our investigations on the phenol based Schiff base complexes (Gupta et al, 2002(Gupta et al, , 2007(Gupta et al, , 2008, we herein report the synthesis and crystal structure of a dimeric copper (II) complex. The molecular structure of the complex is shown in Fig.1 (Addison et al, 1984)].…”

“…For related phenolbased Schiff base complexes, see: Gupta et al (2002Gupta et al ( , 2007Gupta et al ( , 2008. For a description of the geometry of pentacoordinated atoms, see: Addison et al (1984).…”

10,21-Dimethyl-2,7,13,18-tetraphenyl-3,6,14,17-tetraazatricyclo[17.3.1.18,12]tetracosa-1(23),2,6,8(24),9,11,13,17,19,21-decaene-23,24-diol cyclohexane 0.33-solvate

“…For information on phenol-based Schiff base ligands, complexes and their applications, see: Vigato et al (2007); Fenton et al (2010); Avaji et al (2009);Na et al (2006); Dutta et al (2004); Mandal et al (1989); Gupta et al (2002Gupta et al ( , 2010 Table 1 Hydrogen-bond geometry (Å , ). Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell refinement: CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.…”