Infrared spectra of complexes of the thiocyanate and related ions

Bailey, R.A.; Kozak, S.L.; Michelsen, T.W.; Mills, W.N.

doi:10.1016/s0010-8545(00)80015-6

Cited by 594 publications

(202 citation statements)

References 77 publications

Supporting

Mentioning

174

Contrasting

Unclassified

Order By: Relevance

“…In the present complexes, the frequencies in 2045-2035 cm −1 due to (C−N) stretch (ν 1 ), 845-835 cm −1 due to ν(C−S) stretch (ν 2 ), and 465-400 cm −1 for δ(NCS) have been identified. These frequencies are associated with the terminal N-bonded isothiocyanate ions [43,44]. In nitrate complexes, the occurrence of two strong bands in 1550-1535 cm −1 and 1315-1300 cm −1 are attributed to ν 4 and ν 1 modes of vibrations of covalently bonded nitrate groups, respectively.…”

Section: Anionsmentioning

confidence: 97%

Synthesis, Spectral and Biological Properties of Copper (Ii) Complexes of Thiosemicarbazones of Schiff Bases Derived From 4-Aminoantipyrine and Aromatic Aldehydes.

Agarwal¹,

Singh²,

Sharma³

2008

Reviews in Inorganic Chemistry

View full text Add to dashboard Cite

We have synthesized a novel series of Schiff bases by condensation of 4-aminoantipyrine and various aromatic aldehydes followed by reaction with thiosemicarbazide. These thiosemicarbazones are potential ligands toward transition metal ions. . These complexes were characterized through elemental analysis, molecular weight, electrical conductance, infrared, electronic spectra, and magnetic susceptibilities at room temperature. Copper(II) complexes with BAAPTS and MBAAPTS were screened for antibacterial and antifungal properties and have exhibited potential activity. Thermal stabilities of two representative complexes were also investigated.

show abstract

Section: Anionsmentioning

confidence: 97%

Synthesis, Spectral and Biological Properties of Copper (Ii) Complexes of Thiosemicarbazones of Schiff Bases Derived From 4-Aminoantipyrine and Aromatic Aldehydes.

Agarwal¹,

Singh²,

Sharma³

2008

Reviews in Inorganic Chemistry

View full text Add to dashboard Cite

show abstract

“…The azido complex 4 shows a single strong band at 2054 cm −1 due to the asymmetric stretching mode and the band associated with symmetric stretching mode is located at 1387 cm −1 [29]. Thiocyanato complex 5 has a very strong band at 2091 cm −1 , a medium band at 775 cm −1 and a weak band at 493 cm −1 corresponding to (CN), (CS) and ı(NCS), respectively [30]. The intensity and band position indicate the unidentate coordination of the thiocyanate through nitrogen atom.…”

Section: Infrared Spectral Studiesmentioning

confidence: 99%

Copper(II) complexes derived from di-2-pyridyl ketone-N4-phenyl-3-semicarbazone: Synthesis and spectral studies

Reena

Kurup

2010

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

View full text Add to dashboard Cite

(5) of di-2-pyridyl ketone-N 4 -phenyl-3-semicarbazone (HL) were synthesized and characterized by elemental analyses and electronic, infrared and EPR spectral techniques. In all these complexes the semicarbazone undergoes deprotonation and coordinates through enolate oxygen, azomethine and pyridyl nitrogen atoms. All the complexes are EPR active due to the presence of an unpaired electron. EPR spectra of all the complexes in DMF at 77 K suggest axial symmetry and the presence of half field signals for the complexes 1 and 3 indicates dimeric structures.

show abstract

“…Based on a theoretical calculation, the N end SCN -is assumed to have a lower frequency compared with that of its free ion. 47,48 It is evident that the electrode potential has a significant influence on the frequency of the adsorbed SCN -, which can be 226 ANALYTICAL SCIENCES FEBRUARY 2000, VOL. 16…”

Section: Scnmentioning

confidence: 99%

Analyzing the Adsorption Behavior of Thiocyanide on Pure Pt and Ni Electrode Surfaces by Confocal Microprobe Raman Spectroscopy

et al. 2000

View full text Add to dashboard Cite

Surface vibrational spectroscopies, such as infrared (IR), 1,2 Raman 3,4 and sum frequency generation (SFG), 5 are powerful surface analytical tools for in-situ investigating electrochemical interfaces by providing information at the molecular level. Among these techniques, Raman spectroscopy exhibits several advantages over IR spectroscopy and the SFG technique in analyzing solid/liquid interfaces: 3 (i) easy use of near-UV, visible, or near-IR light sources for the excitation of the Raman process, (ii) transparency of the electrolyte for the light beam, (iii) application of standard electrochemical cells without the need of using thin liquid cells, and hence, (iv) easy combination with electrochemical transient measurements in faradaic and non-faradaic regions, (v) easy obtaining vibrational bands related to the adsorbate-surface interaction in the low-frequency region (<500 cm -1 ). However, the lack of detection sensitivity has been a severe obstacle which had impeded the wide application of Raman spectroscopy in surface science and interfacial electrochemistry. In the absence of any resonance Raman or surface-enhancement processes, the typical differential Raman cross section (dσ/dΩ)NRS is less than 10 -29 cm 2 sr -1 compared with 10 -20 cm 2 sr -1 that of IR. 3 Especially in the analysis of adsorbates on the surface, the molecular quantity present is normally on the order of monolayer, or even submonolayer.Accordingly, the corresponding surface Raman intensities expected for a monolayer adsorbates are less than 1 count per second (cps) when standard Raman spectrometer systems are used. The discovery of surface-enhanced Raman scattering (SERS) in the 1970s, 6-8 that the Raman intensities for pyridine adsorbed at electrochemically roughened Ag electrodes were six orders of magnitude larger than those expected from the known differential Raman cross section for pyridine in solution, changed the situation of surface Raman spectroscopy. These findings stimulated worldwide experimental and theoretical research on SERS. Among the various proposed SERS mechanisms, "electromagnetic mechanism" (EM) 9 and "chemical effect" or "charge transfer" (CT) enhancement 10 have been widely accepted as the two main contributions to the giant surface enhancement. In the past two decades, with its high surface sensitivity and ease detecting vibrations in the lowfrequency region, SERS has been extensively applied in surface science, 3,4,9,10 analytical science 11 and life science. 12 Although it has especially provided a wealth of information in understanding solid/liquid and solid/gas interfacial structures, its application was almost restricted to noble metals, i.e., Ag, Au and Cu. 3,4,9,10 Therefore, it is worth finding other SERS substrates which are extensively used in variety of technologically important processes, such as Pt, Ni and Fe metals. Many researchers have been exploring very hard to attain this goal, but successful cases are few. Among them, Fleischmann's group 13 and Weaver's group 14,15 took advantage of the lo...

show abstract

Infrared spectra of complexes of the thiocyanate and related ions

Cited by 594 publications

References 77 publications

Synthesis, Spectral and Biological Properties of Copper (Ii) Complexes of Thiosemicarbazones of Schiff Bases Derived From 4-Aminoantipyrine and Aromatic Aldehydes.

Synthesis, Spectral and Biological Properties of Copper (Ii) Complexes of Thiosemicarbazones of Schiff Bases Derived From 4-Aminoantipyrine and Aromatic Aldehydes.

Copper(II) complexes derived from di-2-pyridyl ketone-N4-phenyl-3-semicarbazone: Synthesis and spectral studies

Analyzing the Adsorption Behavior of Thiocyanide on Pure Pt and Ni Electrode Surfaces by Confocal Microprobe Raman Spectroscopy

Contact Info

Product

Resources

About