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B: XY-type Compounds

SymbolStructure NameSpace Group
(Example)		Representative SubstancesDescription　X: Green　
　Y: Yellow　
B1Rock Salt type\(Fm\bar{3}m\)NaClX and Y each adopt a cubic close-packed structure (A1), displaced by 1/2 along one of the edge directions. The structure is invariant when X and Y are exchanged.
B2Cesium Chloride type\(Pm\bar{3}m\)CsClX is positioned at the body center of the unit cell, and Y is positioned at the vertices. The structure is invariant when X and Y are exchanged.
B3Zinc Blende type\(F\bar{4}3m\)ZnSBased on the diamond structure (A4), X and Y are arranged so that they do not neighbor each other. The structure is invariant when X and Y are exchanged. It can also be thought of as X and Y each forming an fcc structure (A1), displaced from each other by 1/4, 1/4, 1/4.
B4Wurtzite type\(P6_3mc\)ZnSX and Y each form a hexagonal close-packed lattice (A3), displaced from each other by 1/3, 2/4, 1/4. It is best learned as a pair with the B3 structure.
B5Moissanite (4H polytype) type\(P6_3mc\)4H SiC
B6Moissanite (6H polytype) type\(P6_3mc\)6H SiC
B7\(R3m\)Si-C 15R
B81Nickeline type\(P6_3/mmc\)NiAs
B82\(P6_3/mmc\)Ni2In
B9Cinnabar type\(P3_221\)α-HgS
B10Litharge type\(P4/nmm\)PbO
B11\(P4/nmm\)γ-CuTi
B13Millerite\(R3m\)β-NiS
B14Westerveldite\(Pnam\)FeAs
B16Herzenbergite\(Pnma\)GeS, SnS
B17Cooperite\(P4_2/mmc\)PtS
B18Covellite\(P6_3/mmc\)CuS
B19martensitic β′-AuCd structure\(Pmma\)β′-AuCd
B20Fersilicite\(P2_13\)FeSi
B21Carbon monoxide\(P2_13\)α-CO
B26Tenorite\(C2/c\)CuO
B27Iron boride\(Pnma\)FeB
B30\(Imm2\)MgZn
B32\(Fd\bar{3}m\)NaTl
B33Chromium(III) boride\(Cmcm\)CrB, CaSi, CrB
B34Palladium(II) sulfide\(P4_2/m\)PdS
B35\(P6/mmm\)CoSn
B37\(I4/mcm\)SeTl
Ba\(I2_13\)CoU
Bb\(P\bar{3}\)ζ-AgZn
Bdη-NiSi
Be\(Pbca\)CdSb
BgTungsten carbide\(P\bar{6}m2\)WC
Bi\(P6_3/mmc\)AsTi
BkHexagonal-BN\(P6_3/mmc\)BN
BlAsS
BmTiB