Five and six-coordinate silicon complexes with an O,N,O′-chelating ligand derived from o-hydroxyacetophenone–N-(2-hydroxyethyl)imine

Böhme, Uwe; Günther, Betty

doi:10.1016/j.inoche.2007.01.008

Cited by 45 publications

(3 citation statements)

References 14 publications

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“…This can be explained by the electronegative character of the phenyl-bound O1 and the carboxyl-type oxygen atom O2. The bond lengths Si1-N1 and Si-C (Table 1) are similar as in similar pentacoordinate silicon complexes [4,6,23].…”

Section: Chosupporting

confidence: 68%

“…Herein, we wanted to expand the available pentacoordinate silicon complexes to those containing the N-[(2-oxy-1-naphthyl)methylene]leucinato ligand. Previously published related silicon complexes contain Schiff base ligands derived from o-hydroxyacetophenone [4,23], salicyl aldehyde [5], acetylacetone [24,25], or o-hydroxynaphthyl aldehyde [6].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Crystal Structure of Dimethyl{N-[(2-oxy-1-naphthyl)methylene]leucinato}silicon

Böhme,

Fels

2023

Crystals

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The title compound was prepared by reaction of the Schiff base ligand N-(2-hydroxy-1-naphthylidene)leucine with dichlorodimethylsilane in the presence of triethylamine as base. The resulting pentacoordinate silicon complex was characterized by NMR, IR, UV-Vis spectroscopy and melting point. The structure was confirmed by single-crystal X-ray diffraction data. It crystallizes in the monoclinic space group Ic with unit cell dimensions a = 7.2030(6), b = 22.9842(14), c = 10.8946(12) Å, β = 96.141(7)°, V = 1793.3(3) Å3, Z = 4.

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Section: Chosupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Synthesis and Crystal Structure of Dimethyl{N-[(2-oxy-1-naphthyl)methylene]leucinato}silicon

Böhme,

Fels

2023

Crystals

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“…ese values are lower than the corresponding values for bulk CuCl 2 •2H 2 O and nano-CuCl 2 •2H 2 O and ceftriaxone. e data indicate that ceftriaxone ligand is more active than their metal complexes; this may be because the chelating ligands containing N and O donor atoms show wide biological activity through bonding to metal ions [64,65]. However, the synergetic effects of ceftriaxone and Cu ion may play an important function in the inhibition of bacterial growth after the complex decomposition.…”

Section: Antibacterial Activitymentioning

confidence: 99%

A Physical-Chemical Study of the Interference of Ceftriaxone Antibiotic with Copper Chloride Salt

Abouelleef

Mahrouka

Salem

2021

Bioinorganic Chemistry and Applications

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The nano-CuCl2.2H2O salt was prepared by the ball milling method. The association parameters for bulk and nano-CuCl2 salts in H2O are estimated at different temperatures using the conductivity method by applying the Fuoss–Shedlovsky equation and it was higher for nano-CuCl2 than bulk CuCl2 salt. The interaction between the cation (Cu2+) and ligand (ceftriaxone) in H2O was determined also by the conductometric method. Two stoichiometric complexes 1/2 and 1/1 (M/L) are estimated and follow the order Kf (1/1) > Kf (1 : 2) and ∆Gf (1/1) > ∆Gf (1/2) for (M : L) (in negative values) indicate the favorable of formation of (1/1) complex compared to the (1 : 2) complex. The Gibbs free energies change was increased in negative signs with increasing the temperature. The antimicrobial activities of CFT, bulk Cu-CFT complex, and nano-Cu-CFT complex were studied on LB agar by the disc diffusion technique against clinical isolates of gram-negative bacteria (Klebsiella pneumonia and Pseudomonas aeruginosa) and Fungi (Candida albicans). It was observed that (CFT) has a higher zone of inhibition and antibacterial activity than that of bulk and nano-Cu-CFT complexes in Klebsiella pneumonia and Pseudomonas aeruginosa (gram-negative bacteria). The nano-Cu-CFT complex showed a higher clear zone of inhibition and antifungal activity against candida than bulk Cu-CFT complex while the absence of the inhibition zone in CFT, so nano-Cu-CFT complex, can be used as an antifungal drug.

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Pentacoordination of Silicon by Five Different Ligand Atoms: Neutral Silicon(IV) Complexes with SiClSONC and SiISONC Skeletons

et al. 2007

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Alle fünfe: Ein fünffach koordiniertes Siliciumzentrum mit fünf unterschiedlichen Ligandatomen (SiClSONC‐ und SiISONC‐Gerüste) wurde in Form des neutralen SiIV‐Komplexes 1 und des analogen Iodo‐Derivats erhalten. Beide Komplexe sind im Festkörper und in Lösung stabil. Der Chloroligand in 1 kann leicht ausgetauscht werden, sodass eine Reihe von fünffach koordinierten Siliciumkomplexen zugänglich sein sollte.

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Five and six-coordinate silicon complexes with an O,N,O′-chelating ligand derived from o-hydroxyacetophenone–N-(2-hydroxyethyl)imine

Cited by 45 publications

References 14 publications

Synthesis and Crystal Structure of Dimethyl{N-[(2-oxy-1-naphthyl)methylene]leucinato}silicon

Synthesis and Crystal Structure of Dimethyl{N-[(2-oxy-1-naphthyl)methylene]leucinato}silicon

A Physical-Chemical Study of the Interference of Ceftriaxone Antibiotic with Copper Chloride Salt

Pentacoordination of Silicon by Five Different Ligand Atoms: Neutral Silicon(IV) Complexes with SiClSONC and SiISONC Skeletons

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