Chalcogenides

The following table presents information on IUSOOs for compounds containing atoms of at least one period 4 transition element and atoms of at least one chalcogenide element (S,Se,Te,Po) in one or more two-dimensional IUSOOs with strength greater than or equal to 1.2. All data of the ICSD up to year 2012 have been considered to build this table.
Different from the tables for cuprates and iron pnictides structures with multiple occupation of sites have not been included. Furthermore, a single representative has been chosen if a series of structure data with occupation of sites changing only slightly has been published in a single reference.
The CC value from the ICSD is given in bold faces if the corresponding structure is a superconductor or a known parent compound of a superconductor.

CC Formula Year Max. strength
of a IUSOO
610361 As1 Cu3 Se4 1985 1.23
155025 Fe2 In2 Se5 2005 1.30
73376 Cu1 Fe1 Se2 1992 1.32
420379 Fe0.997 Se1 2009 1.46
167242 Fe1 Se0.983 2010 1.46
162723 Fe0.987 Se1 2009 1.47
165981 Fe1 Se0.975 2009 1.47
633877 Fe1 Te1 1956 1.59
71520 Fe1 Nb1 Te2 1992 1.64
44753 Fe1 Te1 1956 1.88