98704-14-4

Basic information

• Product Name: CH₂CHCH₂C(CN)2C(CN)2CH₂CHCH₂
• Synonyms: CH₂CHCH₂C(CN)2C(CN)2CH₂CHCH₂
• CAS NO: 98704-14-4
• Molecular Weight: 210.238
• Mol File: 98704-14-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: CH₂CHCH₂C(CN)2C(CN)2CH₂CHCH₂(CAS DataBase Reference)
• NIST Chemistry Reference: CH₂CHCH₂C(CN)2C(CN)2CH₂CHCH₂(98704-14-4)
• EPA Substance Registry System: CH₂CHCH₂C(CN)2C(CN)2CH₂CHCH₂(98704-14-4)

Safety Data

• Hazardous Substances Data: 98704-14-4(Hazardous Substances Data)

Upstream product

• 98689-94-2 bis(η3-allyl)(tetracyanoethylene)platinum 
• 98689-95-3 (η3-allyl)(η1-allyl)(triphenylhosphine)platinum(II) 
• 670-54-2 ethenetetracarbonitrile 

Relevant articles and documents

Preparation of bis(η3-allyl)(tetracyanoethylene)platinum and its reaction with triphenylphosphine leading to the addition of both allyl groups to tetracyanoethylene

Tetracyanoethylene (TCNE) reacts with (η3-C3H5)2Pt (1) to give the 1:1 adduct (η3-C3H5)2Pt(TCNE) (2), the structure of which was inferred with the aid of low-temperature 1H NMR spectroscopy. This adduct decomposes in the presence of an equimolar amount of PPh3 to afford Pt metal and C3H5C(CN)2C(CN)2C3H 5 (4), which is a product of linear addition of two allyl groups to TCNE. This same organic compound is obtained by reaction of a 1:1 adduct of 1 and PPh3, (η3-C3H5)Pt-(η1-C 3H5) (3), with an equimolar amount of TCNE. The foregoing reactions were studied by low-temperature 31P{1H} and 1H NMR spectroscopy; results indicate that PPh3 displaces the TCNE in 2 to give 3. Complex 3 then reacts with TCNE via two successive observable intermediates, formulated as (η3-C3H5)Pt[C(CN)2C(CN) 2C3H5](PPh3) (5) and {η4-[C3H5C(CN)2C(CN) 2C3H5]{Pt(PPh3) (6), to afford Pt metal, PPh3, and 4. A general mechanism is proposed for these reactions.