Synthesis, characterization, and acidity properties of [MCl(H2)(L)(PMP)]BF4 (M = Ru, L = PPh3, CO; M = Os, L = PPh3; PMP = 2,6-(Ph2PCH2)2C5H3N)

Guochen Jia, Hon Man Lee, Ian D. Williams, Chak Po Lau, Yuzhong Chen

Research output: Contribution to journalArticle

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Abstract

Treatment of RuCl2(PPh3)3 with PMP (PMP = 2,6-(Ph2PCH2)2C5H3N) in acetone produced RuCl2(PPh3)(PMP), which has been characterized by X-ray diffraction. Treatment of RuCl2-(PPh3)(PMP) with NaBH4 in methanol gave RuHCl(PPh3)(PMP), acidification of which with HBF4·Et2O produced the molecular dihydrogen complex [RuCl(H2)(PPh3)(PMP)]BF4. Treatment of RuHCl(CO)(PPh3)3 with PMP in benzene produced RuHCl(CO)(PMP), which reacted with HBF4·Et2O to give the molecular dihydrogen complex [RuCl(H2)(CO)(PMP)]BF4. The osmium molecular dihydrogen complex [OsCl(H2)(PPh3)(PMP)]BF4 was prepared by protonation of OsHCl(PPh3)(PMP) with HBF4·Et2O. Relative acidities of the dihydrogen complexes were investigated by NMR spectroscopy of equilibrium reactions conducted in CD2Cl2. [RuCl-(H2)(CO)(PMP)]BF4 is more acidic than [RuCl(H2)(PPh3)(PMP)]BF4, which is in turn more acidic than its osmium analog [OsCl(H2)(PPh3)(PMP)]BF4.

Original languageEnglish
Pages (from-to)3941-3949
Number of pages9
JournalOrganometallics
Volume16
Issue number18
Publication statusPublished - 1997 Sep 2

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Carbon Monoxide
Acidity
acidity
osmium
Osmium
synthesis
acetone
Acidification
Protonation
methyl alcohol
Acetone
Benzene
benzene
analogs
Nuclear magnetic resonance spectroscopy
Methanol
nuclear magnetic resonance
diffraction
X ray diffraction
spectroscopy

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

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title = "Synthesis, characterization, and acidity properties of [MCl(H2)(L)(PMP)]BF4 (M = Ru, L = PPh3, CO; M = Os, L = PPh3; PMP = 2,6-(Ph2PCH2)2C5H3N)",
abstract = "Treatment of RuCl2(PPh3)3 with PMP (PMP = 2,6-(Ph2PCH2)2C5H3N) in acetone produced RuCl2(PPh3)(PMP), which has been characterized by X-ray diffraction. Treatment of RuCl2-(PPh3)(PMP) with NaBH4 in methanol gave RuHCl(PPh3)(PMP), acidification of which with HBF4·Et2O produced the molecular dihydrogen complex [RuCl(H2)(PPh3)(PMP)]BF4. Treatment of RuHCl(CO)(PPh3)3 with PMP in benzene produced RuHCl(CO)(PMP), which reacted with HBF4·Et2O to give the molecular dihydrogen complex [RuCl(H2)(CO)(PMP)]BF4. The osmium molecular dihydrogen complex [OsCl(H2)(PPh3)(PMP)]BF4 was prepared by protonation of OsHCl(PPh3)(PMP) with HBF4·Et2O. Relative acidities of the dihydrogen complexes were investigated by NMR spectroscopy of equilibrium reactions conducted in CD2Cl2. [RuCl-(H2)(CO)(PMP)]BF4 is more acidic than [RuCl(H2)(PPh3)(PMP)]BF4, which is in turn more acidic than its osmium analog [OsCl(H2)(PPh3)(PMP)]BF4.",
author = "Guochen Jia and Lee, {Hon Man} and Williams, {Ian D.} and Lau, {Chak Po} and Yuzhong Chen",
year = "1997",
month = "9",
day = "2",
language = "English",
volume = "16",
pages = "3941--3949",
journal = "Organometallics",
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Synthesis, characterization, and acidity properties of [MCl(H2)(L)(PMP)]BF4 (M = Ru, L = PPh3, CO; M = Os, L = PPh3; PMP = 2,6-(Ph2PCH2)2C5H3N). / Jia, Guochen; Lee, Hon Man; Williams, Ian D.; Lau, Chak Po; Chen, Yuzhong.

In: Organometallics, Vol. 16, No. 18, 02.09.1997, p. 3941-3949.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Synthesis, characterization, and acidity properties of [MCl(H2)(L)(PMP)]BF4 (M = Ru, L = PPh3, CO; M = Os, L = PPh3; PMP = 2,6-(Ph2PCH2)2C5H3N)

AU - Jia, Guochen

AU - Lee, Hon Man

AU - Williams, Ian D.

AU - Lau, Chak Po

AU - Chen, Yuzhong

PY - 1997/9/2

Y1 - 1997/9/2

N2 - Treatment of RuCl2(PPh3)3 with PMP (PMP = 2,6-(Ph2PCH2)2C5H3N) in acetone produced RuCl2(PPh3)(PMP), which has been characterized by X-ray diffraction. Treatment of RuCl2-(PPh3)(PMP) with NaBH4 in methanol gave RuHCl(PPh3)(PMP), acidification of which with HBF4·Et2O produced the molecular dihydrogen complex [RuCl(H2)(PPh3)(PMP)]BF4. Treatment of RuHCl(CO)(PPh3)3 with PMP in benzene produced RuHCl(CO)(PMP), which reacted with HBF4·Et2O to give the molecular dihydrogen complex [RuCl(H2)(CO)(PMP)]BF4. The osmium molecular dihydrogen complex [OsCl(H2)(PPh3)(PMP)]BF4 was prepared by protonation of OsHCl(PPh3)(PMP) with HBF4·Et2O. Relative acidities of the dihydrogen complexes were investigated by NMR spectroscopy of equilibrium reactions conducted in CD2Cl2. [RuCl-(H2)(CO)(PMP)]BF4 is more acidic than [RuCl(H2)(PPh3)(PMP)]BF4, which is in turn more acidic than its osmium analog [OsCl(H2)(PPh3)(PMP)]BF4.

AB - Treatment of RuCl2(PPh3)3 with PMP (PMP = 2,6-(Ph2PCH2)2C5H3N) in acetone produced RuCl2(PPh3)(PMP), which has been characterized by X-ray diffraction. Treatment of RuCl2-(PPh3)(PMP) with NaBH4 in methanol gave RuHCl(PPh3)(PMP), acidification of which with HBF4·Et2O produced the molecular dihydrogen complex [RuCl(H2)(PPh3)(PMP)]BF4. Treatment of RuHCl(CO)(PPh3)3 with PMP in benzene produced RuHCl(CO)(PMP), which reacted with HBF4·Et2O to give the molecular dihydrogen complex [RuCl(H2)(CO)(PMP)]BF4. The osmium molecular dihydrogen complex [OsCl(H2)(PPh3)(PMP)]BF4 was prepared by protonation of OsHCl(PPh3)(PMP) with HBF4·Et2O. Relative acidities of the dihydrogen complexes were investigated by NMR spectroscopy of equilibrium reactions conducted in CD2Cl2. [RuCl-(H2)(CO)(PMP)]BF4 is more acidic than [RuCl(H2)(PPh3)(PMP)]BF4, which is in turn more acidic than its osmium analog [OsCl(H2)(PPh3)(PMP)]BF4.

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