About: http://webisa.webdatacommons.org/443186970

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	R2 R3 + A-, --NHR and --SH, where R, R1, R2 and R3 are alkyl groups, M is a metal group and A- is an anion.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com