Access to Monomeric Lead(II) Hydrides with Remarkable Thermostability and Their Use in Catalytic Hydroboration of Carbonyl Derivatives

Shuo Wang; Kang Yu Liu; Han Jung Li; Wan Ching Lee; Shuo Ling Huang; Wen Chun Wu; Fong Ku Shi; You Song Cheng; I. Chung Lu; Hsueh Ju Liu

doi:10.1021/acs.inorgchem.2c01658

Access to Monomeric Lead(II) Hydrides with Remarkable Thermostability and Their Use in Catalytic Hydroboration of Carbonyl Derivatives

Shuo Wang, Kang Yu Liu, Han Jung Li, Wan Ching Lee, Shuo Ling Huang, Wen Chun Wu, Fong Ku Shi, You Song Cheng, I. Chung Lu, Hsueh Ju Liu^*

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We report on the remarkable stability of unprecedented, monomeric lead(II) hydrides M⁺[LPb(II)H]^-(M[1-H]), where L = 2,6-bis(3,5-diphenylpyrrolyl)pyridine and M = (18-crown-6)potassium or ([2.2.2]-cryptand)potassium. The half-life of [K18c6][1-H] of ∼2 days in tetrahydrofuran at 25 °C is significantly longer than those reported for dimeric lead(II) hydrides supported by bulky terphenyl ligands (few hours at low temperatures), which are the only examples known for lead(II) hydride compounds. The presence of a Pb-H bond in [1-H]^-was unambiguously identified by multinuclear NMR spectroscopy. Remarkably, a ¹H resonance of the hydride ligand was found at δ= 41.43 ppm (¹J_PbH= 1312 Hz). For reactivity study, [1-H]^-serves as an excellent hydroboration catalyst with high turnover numbers and turnover frequencies for several carbonyl compounds.

原文	English
頁（從 - 到）	13096-13103
頁數	8
期刊	Inorganic Chemistry
卷	61
發行號	33
DOIs	https://doi.org/10.1021/acs.inorgchem.2c01658
出版狀態	Published - 22 8月 2022

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@article{ae2d5d215efa4e07b40aa3e8d5897f3b,

title = "Access to Monomeric Lead(II) Hydrides with Remarkable Thermostability and Their Use in Catalytic Hydroboration of Carbonyl Derivatives",

abstract = "We report on the remarkable stability of unprecedented, monomeric lead(II) hydrides M+[LPb(II)H]-(M[1-H]), where L = 2,6-bis(3,5-diphenylpyrrolyl)pyridine and M = (18-crown-6)potassium or ([2.2.2]-cryptand)potassium. The half-life of [K18c6][1-H] of ∼2 days in tetrahydrofuran at 25 °C is significantly longer than those reported for dimeric lead(II) hydrides supported by bulky terphenyl ligands (few hours at low temperatures), which are the only examples known for lead(II) hydride compounds. The presence of a Pb-H bond in [1-H]-was unambiguously identified by multinuclear NMR spectroscopy. Remarkably, a 1H resonance of the hydride ligand was found at δ= 41.43 ppm (1JPbH= 1312 Hz). For reactivity study, [1-H]-serves as an excellent hydroboration catalyst with high turnover numbers and turnover frequencies for several carbonyl compounds.",

author = "Shuo Wang and Liu, {Kang Yu} and Li, {Han Jung} and Lee, {Wan Ching} and Huang, {Shuo Ling} and Wu, {Wen Chun} and Shi, {Fong Ku} and Cheng, {You Song} and Lu, {I. Chung} and Liu, {Hsueh Ju}",

year = "2022",

month = aug,

day = "22",

doi = "10.1021/acs.inorgchem.2c01658",

language = "English",

volume = "61",

pages = "13096--13103",

journal = "Inorganic Chemistry",

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T1 - Access to Monomeric Lead(II) Hydrides with Remarkable Thermostability and Their Use in Catalytic Hydroboration of Carbonyl Derivatives

AU - Wang, Shuo

AU - Liu, Kang Yu

AU - Li, Han Jung

AU - Lee, Wan Ching

AU - Huang, Shuo Ling

AU - Wu, Wen Chun

AU - Shi, Fong Ku

AU - Cheng, You Song

AU - Lu, I. Chung

AU - Liu, Hsueh Ju

PY - 2022/8/22

Y1 - 2022/8/22

N2 - We report on the remarkable stability of unprecedented, monomeric lead(II) hydrides M+[LPb(II)H]-(M[1-H]), where L = 2,6-bis(3,5-diphenylpyrrolyl)pyridine and M = (18-crown-6)potassium or ([2.2.2]-cryptand)potassium. The half-life of [K18c6][1-H] of ∼2 days in tetrahydrofuran at 25 °C is significantly longer than those reported for dimeric lead(II) hydrides supported by bulky terphenyl ligands (few hours at low temperatures), which are the only examples known for lead(II) hydride compounds. The presence of a Pb-H bond in [1-H]-was unambiguously identified by multinuclear NMR spectroscopy. Remarkably, a 1H resonance of the hydride ligand was found at δ= 41.43 ppm (1JPbH= 1312 Hz). For reactivity study, [1-H]-serves as an excellent hydroboration catalyst with high turnover numbers and turnover frequencies for several carbonyl compounds.

AB - We report on the remarkable stability of unprecedented, monomeric lead(II) hydrides M+[LPb(II)H]-(M[1-H]), where L = 2,6-bis(3,5-diphenylpyrrolyl)pyridine and M = (18-crown-6)potassium or ([2.2.2]-cryptand)potassium. The half-life of [K18c6][1-H] of ∼2 days in tetrahydrofuran at 25 °C is significantly longer than those reported for dimeric lead(II) hydrides supported by bulky terphenyl ligands (few hours at low temperatures), which are the only examples known for lead(II) hydride compounds. The presence of a Pb-H bond in [1-H]-was unambiguously identified by multinuclear NMR spectroscopy. Remarkably, a 1H resonance of the hydride ligand was found at δ= 41.43 ppm (1JPbH= 1312 Hz). For reactivity study, [1-H]-serves as an excellent hydroboration catalyst with high turnover numbers and turnover frequencies for several carbonyl compounds.

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DO - 10.1021/acs.inorgchem.2c01658

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AN - SCOPUS:85136314578

SN - 0020-1669

VL - 61

SP - 13096

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JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 33

ER -

Access to Monomeric Lead(II) Hydrides with Remarkable Thermostability and Their Use in Catalytic Hydroboration of Carbonyl Derivatives

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