Utente:Grasso Luigi/sanbox1/Metilene (composto)
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Methylene (systematically named methylidene and dihydridocarbon; also called carbene) is an organic compound with the chemical formula CH2 (also written [CH2]). It is a colourless gas that fluoresces in the mid-infrared range, and only persists in dilution, or as an adduct.
Fatti in breve Metilene, Nome IUPAC ...
Metilene | |
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Nome IUPAC | |
Diidrurocarbonio(2•) [1][2] | |
Nomi alternativi | |
Metilidene; Diidrurocarbonio; Carbene[2] | |
Caratteristiche generali | |
Formula bruta o molecolare | CH22• |
Massa molecolare (u) | 14.0266[3] |
Aspetto | gas incolore |
Numero CAS | 2465-56-7 Immagine_3D |
PubChem | 123164 |
SMILES | [CH2] |
Proprietà termochimiche | |
ΔfH0 (kJ·mol−1) | 386.39 kJ mol−1 |
S0m(J·K−1mol−1) | 193.93 J K−1 mol−1 |
Indicazioni di sicurezza | |
Simboli di rischio chimico | |
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attenzione | |
Frasi H | --- |
Consigli P | ---[4]---[5] |
Chiudi
Methylene is the simplest carbene.[6]p.7[7] It is usually detected only at very low pressures, very low temperatures, or as a short-lived intermediate in chemical reactions.[8]