MOLYBDENUM(II) ACETATE DIMER

한글명:MOLYBDENUM(II) ACETATE DIMER

카스 번호14221-06-8

상품명:MOLYBDENUM(II) ACETATE DIMER

CBNumberCB2160470

분자식C8H12Mo2O8

포뮬러 무게428.06

MOL 파일14221-06-8.mol

화학적 성질

저장 조건	-20°C
물리적 상태	수정 같은
색상	노란색
수용성	유기 용매에 약간 용해됩니다. 물에 불용성.
감도	Air Sensitive
노출 한도	ACGIH: TWA 0.5 mg/m3; TWA 10 mg/m3; TWA 3 mg/m3 NIOSH: IDLH 1000 mg/m3; IDLH 5000 mg/m3
CAS 데이터베이스	14221-06-8

위험 및 안전 성명

안전지침서

24/25

WGK 독일

F 고인화성물질

1-10

NFPA 704:

	0
1		0

MOLYBDENUM(II) ACETATE DIMER 화학적 특성, 용도, 생산

개요
Molybdenum (II) acetate is a coordination compound with the formula Mo₂(O₂CCH₃)₄. It is a yellow, diamagnetic, air-stable solid that is slightly soluble in organic solvents. Molybdenum(II) acetate is an iconic example of a compound with a metal-metal quadruple bond.
화학적 성질
yellow to greenish needle-like crystals or
물리적 성질
Molybdenum (II) Acetate adopts the same Chinese lantern structure as related acetate dimers such as rhodium (II) acetate, copper (II) acetate, and chromium (II) acetate. Each Mo(II) center in Mo2(O2CCH3)4 has four d valence electrons. These eight d-electrons form one σ, two π bonds, and one δ bond, creating a bonding electron configuration of σ2π4δ2. Each of these bonds are formed by the overlapping of pairs of d orbitals.The four acetate groups bridge the two metal centers. The Mo-O bond between each Mo(II) center and O atom from acetate has a distance of 2.119 Å, and the Mo-Mo distance between the two metal centers is 2.0934 Å.
용도
Molybdenum(II) acetate dimer is generally used as an intermediate compound in a process to form other quadruply bonded molybdenum compounds.
제조 방법
Mo₂(O₂CCH₃)₄is prepared by treating molybdenum hexa carbonyl (Mo (CO)₆) with acetic acid. The process strips CO ligands from hexacarbonyl results in the oxidation of Mo (0) to Mo (II).
2 Mo(CO)₆ + 4 HO₂CCH₃ → Mo₂(O₂CCH₃)₄ + 12 CO + 2 H₂
Trinuclear clusters are byproducts.
The reaction of HO₂CCH₃ and Mo(CO)₆ was first investigated by Bannister et al. in 1960. At the time, quadruple metal-metal bonds had not yet been discovered, so these authors proposed that "Mo(O₂CCH₃)₂ was tetrahedral. This perspective changed with Mason's characterization .
주요 응용
Mo₂(O₂CCH₃)₄ is generally used as an intermediate compound in a process to form other quadruply bonded molybdenum compounds The acetate ligands can be replaced to give new compounds such as [Mo₂Cl₈]^4- and Mo₂Cl₄[P(C₄H₉)₃]₄.

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