Abstract
The synthesis, characterization and thermogravimetric study of [Sm(12C4)(H
2
O)
4
]Cl
3
, [Dy(12C4)(H
2
O)
4
]Cl
3
, [Sm(12C4)(bipy)(H
2
O)
2
]Cl
3
, [Dy(12C4)(bipy)(H
2
O)
2
]Cl
3
, [Sm(12C4)(bipy)(phen)]Cl
3
, [Dy(12C4)(bipy)(phen)]Cl
3
, [Sm(12C4)(phen)
2
]Cl
3
, [Dy(12C4)(phen)
2
]Cl
3
, [Sm(12C4)(terpy)(H
2
O)]Cl
3
and [Dy(12C4)(terpy)(H
2
O)]Cl
3
(12C4 = 12-crown-4; bipy = bipyridine; phen = 1,10-phanathroline; terpy = terpyridine) are reported. All compounds exhibit CN = 8 and four oxygen-lanthanide bonds of the crown ether provide a very stable (from the thermal point of view) chemical environment, since the crown ether molecules are the last organic moiety to be released under heating.