The carbonate chlorides are
double salts containing both
carbonate and
chloride anions. Quite a few minerals are known. Several artificial compounds have been made. Some complexes have both carbonate and chloride
ligands
In coordination chemistry, a ligand is an ion or molecule (functional group) that binds to a central metal atom to form a coordination complex. The bonding with the metal generally involves formal donation of one or more of the ligand's electro ...
. They are part of the family of halocarbonates. In turn these halocarbonates are a part of
mixed anion material
Mixed is the past tense of ''mix''.
Mixed may refer to:
* Mixed (United Kingdom ethnicity category), an ethnicity category that has been used by the United Kingdom's Office for National Statistics since the 1991 Census
* ''Mixed'' (album), a co ...
s.
The carbonate chlorides do not have a bond from chlorine to carbon, however "chlorocarbonate" has also been used to refer to the
chloroformate
Chloroformates are a class of organic compounds with the formula ROC(O)Cl. They are formally esters of chloroformic acid. Most are colorless, volatile liquids that degrade in moist air. A simple example is methyl chloroformate, which is commer ...
s which contain the group ClC(O)O-.
Formation
Natural
Scapolite is produced in nature by
metasomatism, where hot high pressure water solutions of carbon dioxide and sodium chloride modify
plagioclase.
Chloroartinite is found in
Sorel cement
Sorel cement (also known as magnesia cement or magnesium oxychloride) is a non-hydraulic cement first produced by the French chemist Stanislas Sorel in 1867.Sorel Stanislas (1867).Sur un nouveau ciment magnésien. ''Comptes Rendus Hebdomadaires d ...
s exposed to air.
Minerals
In 2016 27 chloride containing carbonate minerals were known.
Artificial
Complexes
The "
lanthaballs" are
lanthanoid atom clusters held together by carbonate and other
ligands. They can form chlorides. Examples are
a13(ccnm)6(CO3)14(H2O)6(phen)18Cl
3(CO
3)·25H
2O where ccnm is carbamoylcyanonitrosomethanide and phen is 1,10-phenanthroline.
Praseodymium (Pr) or
cerium (Ce) can substitute for
lanthanum (La). Other
lanthanide cluster compounds include :(H
3O)
6 y76O10(OH)138(OAc)20(L)44(H2O)34€¢2CO
3•4
Cl
2•L•2OAc (nicknamed Dy
76) and (H
3O)
6 y48O6(OH)84(OAc)4(L)15(hmp)18(H2O)20€¢CO
3•14Cl•2H
2O (termed Dy
48-T) with OAc=acetate, and L=
3-furancarboxylate and Hhmp=
2,2-bis(hydroxymethyl)propionic acid.
Platinum can form complexes with carbonate and chloride ligands, in addition to an
amino acid. Examples include the platinum compound
t(gluH)Cl(CO3)sub>2.2H
2O gluH=glutamic acid, and Na
t(gln)Cl2(CO3)H
2O gln=glutamine.
complexes include Rh
2(bipy)
2(CO
3)
2Cl (bipy=
bipyridine)
References
{{Reflist
Carbonates
Chlorides
Mixed anion compounds
Double salts