Isoperthiocyanic acid (3-amino-5-thione-l,2,4-dithiazole): an exocyclic sulphur donor ligand

Edwards, D. A.; Richards, R.; Myers, R. E.; Walton, Richard A.

doi:10.1016/s0020-1693(00)94764-9

Cited by 15 publications

(14 citation statements)

References 13 publications

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“…Some compounds are described with isoperthiocyanic acid acting as a monodentate ligand (Edwards, Richards, Myers, Walton, 1977). To our knowledge, however, this is the first compound in which this molecule acts as a bidentate ligand (Edwards et al, 1977).…”

Section: Atommentioning

confidence: 99%

The crystal structure of di(5-amino-3-thione-1,2,4- dithiazole)tris-thiocyanatobismuthate(III), (C₂H₂N₂S₃)₂Bi(SCN)₃

Bensch¹,

Reifler²,

Reller³

et al. 1989

Zeitschrift Für Kristallographie - Crystalline Materials

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Bismuth(III) compound / Isoperthiocyanic acid sah / Thiocyanic acid sah / Crystal structureAbstract. Single crystals of (C 2 H 2 N 2 S 3 ) 2 Bi(SCN)3 have been prepared from solution and its structure has been determined. (C 2 H 2 N 2 S 3 ) 2 -Bi(SCN) 3 is monoclinic, space grouip C2/c, a = 6.730(4), b = 13.285(4), c = 20.679(4) Α, β = 96.92(5)°, Ζ = 4. Four sites of the strongly distorted tetragonal antiprism forming the coordination polyhedron of the Bi atom are occupied by S and Ν atoms of two isoperthiocyanic acid molecules (isoperthiocyanic acid: 5-amino-3-thione-l,2,4-dithiazole). The C 2 N 2 S 3 disubstituted Ave membered ring units of the isoperthiocyanic acid molecules are planar.The other four sites of the coordination polyhedron are occupied by S and Ν atoms of thiocyanate ions. Two of them form bonds via S to the Bi atom. A third thiocyanate group acts as a bidentate ligand, connecting neighbouring Bi atoms. These ambidently bridging thiocyanate ions are disordered, thus leading to infinite chains made up of equal numbers of -Bi-S-C-N-Bi'-and -Bi-N-C-S-Bi'-units, running nearly parallel to the crystallographic α-axis. The Bi -S distances range form 2.814(3) to 2.919(2) Â, the Bi-N distances are 2.695(6) Â for the binding Ν atom of the isoperthiocyanic acid molecule and 2.66(2) Â for the Ν atom of the disordered bridging thiocyanate ion, respectively. A possible location of the Bi(III) lone pair is briefly discussed.

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Section: Atommentioning

confidence: 99%

The crystal structure of di(5-amino-3-thione-1,2,4- dithiazole)tris-thiocyanatobismuthate(III), (C₂H₂N₂S₃)₂Bi(SCN)₃

Bensch¹,

Reifler²,

Reller³

et al. 1989

Zeitschrift Für Kristallographie - Crystalline Materials

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“…This indicated that the isoperthiocyanic acid ligand is bound to the metal ion through the exocyclic sulfur group (ν-C=S). 19 …”

Section: Resultsmentioning

confidence: 99%

“…Hence, XPS spectra confirmed the chelation of isoperthiocyanic acid through the exocyclic sulfur atom with the respective metal ions ( Figure 5 ). 19 …”

Section: Resultsmentioning

confidence: 99%

“…The exocyclic sulfur group (ν-CS) of the ligand showed a band at 995 cm –1 , which marginally shifted to 1000 cm –1 upon complexation. This indicated that the isoperthiocyanic acid ligand is bound to the metal ion through the exocyclic sulfur group (ν-CS) …”

Section: Resultsmentioning

confidence: 99%

“…UV–vis spectral data failed to confirm the possible coordination mode of isoperthiocyanic acid with the metal atom. Edwards et al studied the isoperthiocyanic acid complexes and revealed that only X-ray photoelectron spectroscopy (XPS) analysis confirms the complex formation and coordination mode of the isoperthiocyanic acid ligand with the metal atom …”

Section: Resultsmentioning

confidence: 99%

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Graphitic Carbon Cloth-Based Hybrid Molecular Catalyst: A Non-conventional, Synthetic Strategy of the Drop Casting Method for a Stable and Bifunctional Electrocatalyst for Enhanced Hydrogen and Oxygen Evolution Reactions

Murthy

Neelakantan

2022

ACS Omega

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Hydrogen energy production through water electrolysis is envisaged as one of the most promising, sustainable, and viable alternate sources to cater to the incessant demands of renewable energy storage. Germane to our effort in this field, we report easily synthesizable and very cost-effective isoperthiocyanic acid (IPA) molecular complexes as electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) under acidic and alkaline conditions. The Pd(II)IPA, Co(II)IPA, and Ni(II)IPA complexes were synthesized and were evaluated for HER and OER applications. These complexes when embedded onto graphitized carbon cloth (GrCC) exhibited a significant enhancement in the HER activity in contrast to their pristine counterparts. The hybrid electrocatalyst Pd(II)IPA among the three showed an extremely low overpotential of 94.1 mV to achieve a current density of 10 mA cm –2 , while Co(II)IPA and Ni(II)IPA complexes showed overpotentials of 367 and 394 mV, respectively, to achieve a current density of 10 mA cm –2 . These complexes on carbon cloth showed decreased charge transfer resistance compared to that of pristine metal complexes. The enhanced catalytic activity of the complexes on carbon cloth can be attributed to the porous and conducting nature of the graphitized carbon cloth. For OER activity, the Pd(II)IPA complex showed an excellent performance with an overpotential value of 210 mV, while Co(II)IPA and Ni(II)IPA exhibited overpotentials of 400 and 270 mV, respectively, to drive a current density of 10 mA cm –2 in 0.1 M KOH. This work further widens the scope and application of molecular complexes in combination with an excellent carbon support for renewable energy storage applications.

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ChemInform Abstract: ISOPERTHIOCYANIC ACID (3‐AMINO‐5‐THIONE‐1,2,4‐DITHIAZOLE)‐ AN EXOCYCLIC SULFUR DONOR LIGAND

Edwards¹,

Richards²,

Myers³

et al. 1977

Chemischer Informationsdienst

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Isoperthiocyanic acid (3-amino-5-thione-l,2,4-dithiazole): an exocyclic sulphur donor ligand

Cited by 15 publications

References 13 publications

The crystal structure of di(5-amino-3-thione-1,2,4- dithiazole)tris-thiocyanatobismuthate(III), (C₂H₂N₂S₃)₂Bi(SCN)₃

The crystal structure of di(5-amino-3-thione-1,2,4- dithiazole)tris-thiocyanatobismuthate(III), (C₂H₂N₂S₃)₂Bi(SCN)₃

Graphitic Carbon Cloth-Based Hybrid Molecular Catalyst: A Non-conventional, Synthetic Strategy of the Drop Casting Method for a Stable and Bifunctional Electrocatalyst for Enhanced Hydrogen and Oxygen Evolution Reactions

ChemInform Abstract: ISOPERTHIOCYANIC ACID (3‐AMINO‐5‐THIONE‐1,2,4‐DITHIAZOLE)‐ AN EXOCYCLIC SULFUR DONOR LIGAND

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Isoperthiocyanic acid (3-amino-5-thione-l,2,4-dithiazole): an exocyclic sulphur donor ligand

Cited by 15 publications

References 13 publications

The crystal structure of di(5-amino-3-thione-1,2,4- dithiazole)tris-thiocyanatobismuthate(III), (C2H2N2S3)2Bi(SCN)3

The crystal structure of di(5-amino-3-thione-1,2,4- dithiazole)tris-thiocyanatobismuthate(III), (C2H2N2S3)2Bi(SCN)3

Graphitic Carbon Cloth-Based Hybrid Molecular Catalyst: A Non-conventional, Synthetic Strategy of the Drop Casting Method for a Stable and Bifunctional Electrocatalyst for Enhanced Hydrogen and Oxygen Evolution Reactions

ChemInform Abstract: ISOPERTHIOCYANIC ACID (3‐AMINO‐5‐THIONE‐1,2,4‐DITHIAZOLE)‐ AN EXOCYCLIC SULFUR DONOR LIGAND

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The crystal structure of di(5-amino-3-thione-1,2,4- dithiazole)tris-thiocyanatobismuthate(III), (C₂H₂N₂S₃)₂Bi(SCN)₃

The crystal structure of di(5-amino-3-thione-1,2,4- dithiazole)tris-thiocyanatobismuthate(III), (C₂H₂N₂S₃)₂Bi(SCN)₃