Metal Halide Vibrations

Ferraro, John R.

doi:10.1007/978-1-4684-1809-5_6

Cited by 9 publications

(4 citation statements)

References 233 publications

(9 reference statements)

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“…Far-IR spectra of C3 have been previously reported and correlate well with the SR-FIR spectra. − Adams et al observed bands at 343 (vs), 327 (sh), and 283 (vs) cm –1 related to Pt–Cl stretches, which match our observed bands at 346/342/339 (s), 324 (w), and 286 (s) cm –1 . Some C3 bands show slight asymmetric line shapes (Figure ) compared to C1 and C2 .…”

Section: Resultssupporting

confidence: 90%

Comprehensive Vibrational Spectroscopic Investigation of trans,trans,trans-[Pt(N₃)₂(OH)₂(py)₂], a Pt(IV) Diazido Anticancer Prodrug Candidate

Vernooij

Joshi²,

Shaili

et al. 2016

Inorg. Chem.

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We report a detailed study of a promising photoactivatable metal-based anticancer prodrug candidate, trans,trans,trans-[Pt(N3)2(OH)2(py)2] (C1; py = pyridine), using vibrational spectroscopic techniques. Attenuated total reflection Fourier transform infrared (ATR-FTIR), Raman, and synchrotron radiation far-IR (SR-FIR) spectroscopies were applied to obtain highly resolved ligand and Pt-ligand vibrations for C1 and its precursors (trans-[Pt(N3)2(py)2] (C2) and trans-[PtCl2(py)2] (C3)). Distinct IR- and Raman-active vibrational modes were assigned with the aid of density functional theory calculations, and trends in the frequency shifts as a function of changing Pt coordination environment were determined and detailed for the first time. The data provide the ligand and Pt-ligand (azide, hydroxide, pyridine) vibrational signatures for C1 in the mid- and far-IR region, which will provide a basis for the better understanding of the interaction of C1 with biomolecules.

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Section: Resultssupporting

confidence: 90%

Comprehensive Vibrational Spectroscopic Investigation of trans,trans,trans-[Pt(N₃)₂(OH)₂(py)₂], a Pt(IV) Diazido Anticancer Prodrug Candidate

Vernooij

Joshi²,

Shaili

et al. 2016

Inorg. Chem.

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“…The far-IR spectra of the complexes displayed peaks corresponding to rhodium-halogen stretches and are indicative of the presence of only terminal halides. [20] The spectra also displayed a peak due to ν Rh -C in the range 300-360 cm −1 ; the result pointing to cyclometallation [21] of the tris/tetrakis-benzimidazole derivatives. Cyclometallation is further supported by the 1 H and 13 C NMR spectra of the complexes.…”

Section: Resultsmentioning

confidence: 94%

Synthesis of rhodium(III) complexes with tris/tetrakis‐benzimidazoles and benzothiazoles—quick identification of cyclometallation by nuclear magnetic resonance spectroscopy

Chandrashekhar

Gayathri

Gowda

2009

Magnetic Reson in Chemistry

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] (X = Cl, Br, I). Elemental analysis, IR and 1 H nuclear magnetic resonance (NMR) chemical shifts supported the binuclear nature of the complexes. Cyclometallation was detected by conventional 13 C NMR spectra that showed a doublet around ∼190 ppm. Cyclometallation was also detected by gradient-enhanced heteronuclear multiple bond correlation (g-HMBC) experiment that showed cross-peaks between the cyclometallated carbon and the central benzene ring protons of 1-3. Cyclometallation was substantiated by two-dimensional 1 H-1 H correlated experiments (gradiant-correlation spectroscopy and rotating frame Overhauser effect spectroscopy) and 1 H-13 C single bond correlated two-dimensional NMR experiments (gradient-enhanced heteronuclear single quantum coherence). The 1 H-15 N g-HMBC experiment suggested the coordination of the heterocycles to the metal ion via tertiary nitrogen.

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“…This indicates the following: The bands due to υ(OH) and δ(OH) of the ligand BHBMT have decreased in their intensity with a red shift, indicating the deprotonating of two OH groups for BHBMT. This means that the two moles of ligands participate with two sides (right and left) of their structures in bonding with metal ion. New bands at 502 cm −1 of υ(Fe-O), 327 cm −1 of υ(Fe-Cl) and 392 cm −1 of υ(Fe-N) were observed (Ferraro, 1971). …”

Section: Resultsmentioning

confidence: 99%

“…New bands at 502 cm −1 of υ(Fe-O), 327 cm −1 of υ(Fe-Cl) and 392 cm −1 of υ(Fe-N) were observed (Ferraro, 1971).…”

Section: Resultsmentioning

confidence: 99%

Green synthesis and spectroscopic studies of some complexes compounds as pigments and their applications in paints

Wahba

Hassan

Naser

et al. 2017

PRT

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Purpose The purpose of this study to investigate the synthesis of new Cr(III), Fe(III), Ni(II) and Cu(II) Schiff base complexes by a simple technique (microwave technique). The evaluation of the prepared complexes as pigments as corrosion resistant was also explored. Design/methodology/approach The Schiff base complexes were prepared by using microwave method (green chemistry), and then, the physico-chemical requirements according to standards for the synthesised pigments were investigate. Findings The prepared complexes exhibit good physical, mechanical and corrosion properties as pigments in paint formulations. Research limitations/implications The simple technique used for synthesis of metal complex pigments will significantly increase the cost saving for the manufacturing of such pigments category. Also, the used technique is considered a green method (eco-friendly), as there no organic solvent was used. Practical implications The evaluation of the prepared complex pigments as corrosion resistants was also studied. Originality/value It is a simple technique, green synthesis (no solvent used) is involved and high yield is obtained.

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Metal Halide Vibrations

Cited by 9 publications

References 233 publications

Comprehensive Vibrational Spectroscopic Investigation of trans,trans,trans-[Pt(N₃)₂(OH)₂(py)₂], a Pt(IV) Diazido Anticancer Prodrug Candidate

Comprehensive Vibrational Spectroscopic Investigation of trans,trans,trans-[Pt(N₃)₂(OH)₂(py)₂], a Pt(IV) Diazido Anticancer Prodrug Candidate

Synthesis of rhodium(III) complexes with tris/tetrakis‐benzimidazoles and benzothiazoles—quick identification of cyclometallation by nuclear magnetic resonance spectroscopy

Green synthesis and spectroscopic studies of some complexes compounds as pigments and their applications in paints

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Metal Halide Vibrations

Cited by 9 publications

References 233 publications

Comprehensive Vibrational Spectroscopic Investigation of trans,trans,trans-[Pt(N3)2(OH)2(py)2], a Pt(IV) Diazido Anticancer Prodrug Candidate

Comprehensive Vibrational Spectroscopic Investigation of trans,trans,trans-[Pt(N3)2(OH)2(py)2], a Pt(IV) Diazido Anticancer Prodrug Candidate

Synthesis of rhodium(III) complexes with tris/tetrakis‐benzimidazoles and benzothiazoles—quick identification of cyclometallation by nuclear magnetic resonance spectroscopy

Green synthesis and spectroscopic studies of some complexes compounds as pigments and their applications in paints

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Comprehensive Vibrational Spectroscopic Investigation of trans,trans,trans-[Pt(N₃)₂(OH)₂(py)₂], a Pt(IV) Diazido Anticancer Prodrug Candidate

Comprehensive Vibrational Spectroscopic Investigation of trans,trans,trans-[Pt(N₃)₂(OH)₂(py)₂], a Pt(IV) Diazido Anticancer Prodrug Candidate