Syntheses and crystal structures of mononuclear and dinuclear (pentamethylcyclopentadienyl)iridium(III) complexes containing 2-mercaptobenzimidazole

Mai Kotera; Takayoshi Suzuki

doi:10.1016/j.ica.2010.05.053

Syntheses and crystal structures of mononuclear and dinuclear (pentamethylcyclopentadienyl)iridium(III) complexes containing 2-mercaptobenzimidazole

Mai Kotera, Takayoshi Suzuki

Research Institute for Interdisciplinary Science

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

A reaction of [Cp*IrCl₂]₂ {Cp* = η⁵-C₅(CH₃)₅} and 2-mercaptobenzimidazole (H₂bimt) in methanol in a 1:2 molar ratio gave a yellow complex of [Cp*IrCl₂(H₂bimt)] ·CH₃OH (1). In compound 1 the H₂bimt acts as a monodentately S-donating (κS) ligand. A similar reaction of [Cp*IrCl₂]₂ and H₂bimt in the presence of NaOCH₃ (molar ratio of 1:2:2) gave an orange product (2) on addition of excess amount of NH₄PF₆. Compound 2 was composed of an unsymmetrical dinuclear complex cation, [(Cp*IrCl)₂(μ- Hbimt)(μ-H₂bimt)]⁺, a PF₆^- anion, and water molecules of crystallization. In the complex cation, H ₂bimt bridges two Ir^III centers by S atom in the μ-κS:κS mode, while the monodeprotonated Hbimt^- ligand bridges via S and N atoms in the μ-κS:κN¹ mode.

Original language	English
Pages (from-to)	3602-3605
Number of pages	4
Journal	Inorganica Chimica Acta
Volume	363
Issue number	13
DOIs	https://doi.org/10.1016/j.ica.2010.05.053
Publication status	Published - Oct 25 2010

Keywords

Benzimidazoline-2-thione
Bridging modes
Iridium(III) complexes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/j.ica.2010.05.053

Fingerprint Dive into the research topics of 'Syntheses and crystal structures of mononuclear and dinuclear (pentamethylcyclopentadienyl)iridium(III) complexes containing 2-mercaptobenzimidazole'. Together they form a unique fingerprint.

Cite this

@article{a26b1d45d2754cf18997f362b53dcc92,

title = "Syntheses and crystal structures of mononuclear and dinuclear (pentamethylcyclopentadienyl)iridium(III) complexes containing 2-mercaptobenzimidazole",

abstract = "A reaction of [Cp*IrCl2]2 {Cp* = η5-C5(CH3)5} and 2-mercaptobenzimidazole (H2bimt) in methanol in a 1:2 molar ratio gave a yellow complex of [Cp*IrCl2(H2bimt)] ·CH3OH (1). In compound 1 the H2bimt acts as a monodentately S-donating (κS) ligand. A similar reaction of [Cp*IrCl2]2 and H2bimt in the presence of NaOCH3 (molar ratio of 1:2:2) gave an orange product (2) on addition of excess amount of NH4PF6. Compound 2 was composed of an unsymmetrical dinuclear complex cation, [(Cp*IrCl)2(μ- Hbimt)(μ-H2bimt)]+, a PF6- anion, and water molecules of crystallization. In the complex cation, H 2bimt bridges two IrIII centers by S atom in the μ-κS:κS mode, while the monodeprotonated Hbimt- ligand bridges via S and N atoms in the μ-κS:κN1 mode.",

keywords = "Benzimidazoline-2-thione, Bridging modes, Iridium(III) complexes",

author = "Mai Kotera and Takayoshi Suzuki",

year = "2010",

month = oct,

day = "25",

doi = "10.1016/j.ica.2010.05.053",

language = "English",

volume = "363",

pages = "3602--3605",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier BV",

number = "13",

}

TY - JOUR

T1 - Syntheses and crystal structures of mononuclear and dinuclear (pentamethylcyclopentadienyl)iridium(III) complexes containing 2-mercaptobenzimidazole

AU - Kotera, Mai

AU - Suzuki, Takayoshi

PY - 2010/10/25

Y1 - 2010/10/25

N2 - A reaction of [Cp*IrCl2]2 {Cp* = η5-C5(CH3)5} and 2-mercaptobenzimidazole (H2bimt) in methanol in a 1:2 molar ratio gave a yellow complex of [Cp*IrCl2(H2bimt)] ·CH3OH (1). In compound 1 the H2bimt acts as a monodentately S-donating (κS) ligand. A similar reaction of [Cp*IrCl2]2 and H2bimt in the presence of NaOCH3 (molar ratio of 1:2:2) gave an orange product (2) on addition of excess amount of NH4PF6. Compound 2 was composed of an unsymmetrical dinuclear complex cation, [(Cp*IrCl)2(μ- Hbimt)(μ-H2bimt)]+, a PF6- anion, and water molecules of crystallization. In the complex cation, H 2bimt bridges two IrIII centers by S atom in the μ-κS:κS mode, while the monodeprotonated Hbimt- ligand bridges via S and N atoms in the μ-κS:κN1 mode.

AB - A reaction of [Cp*IrCl2]2 {Cp* = η5-C5(CH3)5} and 2-mercaptobenzimidazole (H2bimt) in methanol in a 1:2 molar ratio gave a yellow complex of [Cp*IrCl2(H2bimt)] ·CH3OH (1). In compound 1 the H2bimt acts as a monodentately S-donating (κS) ligand. A similar reaction of [Cp*IrCl2]2 and H2bimt in the presence of NaOCH3 (molar ratio of 1:2:2) gave an orange product (2) on addition of excess amount of NH4PF6. Compound 2 was composed of an unsymmetrical dinuclear complex cation, [(Cp*IrCl)2(μ- Hbimt)(μ-H2bimt)]+, a PF6- anion, and water molecules of crystallization. In the complex cation, H 2bimt bridges two IrIII centers by S atom in the μ-κS:κS mode, while the monodeprotonated Hbimt- ligand bridges via S and N atoms in the μ-κS:κN1 mode.

KW - Benzimidazoline-2-thione

KW - Bridging modes

KW - Iridium(III) complexes

UR - http://www.scopus.com/inward/record.url?scp=77957693782&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77957693782&partnerID=8YFLogxK

U2 - 10.1016/j.ica.2010.05.053

DO - 10.1016/j.ica.2010.05.053

M3 - Article

AN - SCOPUS:77957693782

VL - 363

SP - 3602

EP - 3605

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

SN - 0020-1693

IS - 13

ER -