A selenite fluoride is a chemical compound or salt that contains fluoride and selenite anions ( and ). These are mixed anion compounds. Some have third anions, including nitrate (), molybdate (), oxalate (), selenate (), silicate () and tellurate ().
Naming A selenite fluoride compound may also be called a fluoride oxoselenate(IV) using IUPAC naming for inorganic compounds.
Production Rare earth selenite fluorides can be produced by dissolving the rare earth selenate into molten lithium fluoride at over 800°C, whereupon the selenate loses oxygen to become selenite, and crystals of the selenite fluoride can form. Another similar method involves heating the rare earth oxide, with a rare earth fluoride and selenium dioxide with a caesium bromide flux. If glass or silica containers are used, they are eaten away by the molten flux and silicates are formed some of which may be fluoride selenite silicate compounds.
Related Related to these are the selenite chlorides and selenite bromides by varying the halogenide. Similar compounds by varying the chalcogen also include the sulfite fluorides and tellurite fluorides. List nameformularatio SeO3:Fmwsystemspace groupunit cell Åvolumedensityopticalreferencesscandium selenite fluorideScSeO3F1:1triclinicP <13−173°C a=6.2769 b=6.5578 c=4.0627 α=95.478 β=95.332 γ=92.363 Z=23.830monoclinicP21/m >13a=4.0643 b =6.6109 c=6.32.35 β=93.298° Z=2Na3Ti3O3(SeO3)4F4:1hexagonalP63a =12.8439 c =5.2339SHG 6 × KDPdimanganese difluoride seleniteMn2SeO3F21:2274.83orthorhombicPnmaa = 7.50848 b = 10.350 and c = 5.47697 Z=4pinkferric difluoride seleniteFeSeO3F1:1201.81monoclinicP21/na=4.9559 b=5.2023 c=12.040 β=97.87 Z=4307.504.359yellowammonium diferric trifluoride diseleniteNH4Fe2F3(SeO3)22:3piperizinium[C4N2H12]Fe4F6(SeO3)42:3933.40monoclinicC2/ca=15.168 b=7.3973 c=16.127 β=90.044 Z=51928.93.14browndiethylenetriamine[C4N3H14]Fe4F6(SeO3)42:3dicobalt difluoride seleniteCo2SeO3F21:2282.82orthorhombicPnmaa = 7.2655 b = 10.001 c = 5.3564 Z=4389.224.826pinkNi2(SeO3)F21:2282.3orthorhombicPnmaa=7.1727 b=9.9377 c=5.2364373.25yellowdicopper difluoride seleniteCu2(SeO3)F21:2292.05orthorhombicPnmaa = 7.066 b = 9.590 c = 5.563 Z=4377.05.146light greendizinc difluoride seleniteZn2(SeO3)F21:2295.70orthorhombicPnmaa=7.276 b=10.042 c=5.256 Z=4384.05.114colourlesstriethylenediamin-di-ium digallium hexafluoride seleniteC6H14N2Ga2F6SeO31:6494.59MonoclinicP21/ca=12.616 b=7.2700 c=13.605 β=104.746 Z=41206.82.722colourlessethelenediamin-di-ium gallium trifluoride seleniteC2H10N2GaF3SeO31:3315.80monoclinicP21/ca=9.1107 b=8.0382 c=10.8302 β=90.045 Z=4793.12.2355colourlesspiperizin-di-ium gallium fluoride oxalate selenite hydrateH2pipGaFSeO3[C2O4]H2O1:1409.87triclinicPa=6.377 b=9.2820 c=11.4112 α=66.53 β=77.44 γ=71.89585.472.325colourless(C4H15N3)2Ga4F2(SeO3)6(C2O4).4H2O6:21467.11triclinicPa=8.9941 b=9.4963 c=11.2959 α=77.13 β=68.073 γ=83.776 Z=1872.172.793colourlessZnGa(SeO3)2F2:1monoclinicP21/ca=7.3482 b=12.3498 c=7.7071 β=121.237°birefringence 0.176 at 546 nmSrAl(SeO3)F31:3hexagonalP63/ma=13.2436 c=5.1816Sr(VO2F)(SeO3)1:1316.52orthorhombicPbcaa=9.7816 b=8.0278 c=12.927 Z=81015.074.142yellowyttrium selenite fluorideYSeO3F1:1monoclinicP21/c <319a=6.5765 b=6.8971 c=7.1728 β=99.036 Z=4monoclincP 21/m >319600° a=6.5840 b=6.9809 c=4.3434 β =95.032 Z=23.922Ag3Ti3O3(SeO3)4F4:11042.15hexagonalP63a=12.8975 c=5.2180 Z=2751.704.604colourless SHG 2×KDPAg2ZrF2(SeO3)22:2598.88orthorhombicCmcaa=7.3640 b=31.451 c=6.27191452.65.477colopurlessdicadmium difluoride seleniteCd2(SeO3)F21:2389.76orthorhombicPnmaa=7.803 b=10.566 c=5.729 Z=4472.45.480colourlessethelenediamin-di-ium indium trifluoride seleniteC2H10N2InF3SeO31:3360.90monoclinicP21/ca=9.3066 b=8.3012 c=11.2923 Z=4871.682.750colourlesscaesium triscandium hexafluoride diseleniteCsSc3F6[SeO3]22:6trigonalP3m1a = 5.6534 c = 10.6987 Z = 1Cs(TiOF)3(SeO3)22:3635.53hexagonalP63mca=7.2420 c=11.8152 Z=2536.653.933Colourless SHG 5xKDPcaesium triiron hexafluoride diseleniteCsFe3(SeO3)2F62:6trigonalPm1a=5.459 c=10.537 Z=1271.9cyanBaAl(SeO3)F3(H2O)0.251:3tetragonalP4/na=14.5731 c=5.0773Ba(VO2F)(SeO3)1:1366.24orthorhombicPbcaa=10.0539 b=8.3967 c=13.1741112.184.375yellowlanthanum selenite fluorideLaSeO3F1:1monoclinicP21/ca = 18.198 b = 7.1575 c = 8.464 β = 96.89 Z = 12cerium selenite fluorideCeSeO3F1:1tetrapraseodymium selenate diselenite hexafluoridePr4(SeO3)2(SeO4)F62:6monoclinicC2/ca = 22.305 b = 7.1054 c = 8.356 β = 98.05° Z = 4tripraseodymium fluoride tetraselenitePr3F[SeO3]4pale greenPr5F[SiO4]2[SeO3]33:1triclinicPa = 7.0114 b = 9.8268 c = 12.8679 α = 70.552 β = 76.904 γ = 69.417° Z = 25.511pale greentrineodymium fluoride tetraseleniteNd3(SeO3)4FhexagonalP63mca=10.515 c=7.1211trisamarium fluoride tetraseleniteSm3(SeO3)4FhexagonalP63mca=10.474 c=7.0224trigadolinium tetraselenite fluorideGd3(SeO3)4F4:1hexagonalP63mca = 10.443 b = 6.9432 Z=2tridysprosium tetraselenite fluorideDy3(SeO3)4F4:11014.34hexagonalP63mca=10.360 c=6.8647 Z=2holmium selenite fluorideHoSeO3F1:1monoclinicP21/ca=6.5784 b=6.8873 c=7.1825 β =99.213 Z=46.43Ho3F[SeO3]44:1hexagonalP63mca = 10.3024 c = 6.8037 Z = 2erbium selenite fluorideErSeO3F1:1monoclinicP21/ca=6.5553 b=6.8741 c=7.1516 β =99.020 Z=46.54Er3F[SiO4][SeO3]22:1orthorhombicPnnaa = 5.8692 b = 15.2931 c = 10.2967 Z = 4pinkthulium selenite fluorideTmSeO3F1:1monoclinicP21/ca=6.5342 b=68607 c=7.1213 β =98,828 Z=46.63ytterbium selenite fluorideYbSeO3F1:1monoclinicP21/ca=6.5146 b=6.8475 c=7.0924 β =98.637 Z=46.77Lutetium selenite fluorideLuF[SeO3]1:1monoclinicP21/c−173°C: a=6.4839 b=6.8128 c=7.0581 β=98.657 Z=4308.236.916triclinicPa=6.4486 b=6.8441 c=4.2798 α=94.063 β=98.657 γ=91.895 Z=2187.045.698monoclinicP21/m173°C: a=6.4734 b=6.8702 c=4.2843 β=95.602 Z=2189.635.621trilutetium fluoride tetraseleniteLu3F(SeO3)44:11051.75trigonalP63a=9.883 c=7.066 Z=2597.75.844colourless SHG 2.5×KDPPbVO2(SeO3)F1:1436.09orthorhombicPbcaa=9.812 b=8.147 c=13.026 Z=81041.35.563yellowPb2Ga3F6(SeO3)2Cl3·2H2O1133.84trigonalR32a=7.2103 c=28.232 Z=31271.14.444SHG 4.0–4.5 × KDPPb2Ga3F6(SeO3)2Br3·2H2O1267.22trigonalR32a=7.2307 c=29.057 Z=31315.64.798SHG 4.0–4.5 × KDPcadmium lead fluoride nitrate selenitePbCdF(SeO3)(NO3)1:1orthorhombicPca21a=11.121 b=10.366 c=5.3950 Z=4621.95.634SHG 2.6×KDP band gap 4.42 eVbismuth selenite fluorideBiFSeO31:1354.94orthorhombicPca21a=6.6774 b=6.8872 c=7.4702 Z=4343.546.862colourless SHG 13.5×KDPtribismuth triselenite pyroselenite fluorideBi3(SeO3)3(Se2O5)F3:1monoclinicF21SHG 3×KDPdibismuth potassium pentafluoride seleniteKBi2SeO3F51:5679.02orthorhombicPbcma=4.553 b=17.80 c=8.80 Z=4712.96.326white band gap 4.08 eVdibismuth rubidium pentafluoride seleniteRbBi2SeO3F51:5725.39TriclinicPa=8.842 b=8.917 c=9.63 α=88.28 β=89.82 γ=89.76 Z=4758.96.349white band gap 4.18 eVRbBi(SeO3)F21:2459.41orthorhombicPnmaa=13.251 b=6.073 c=6.780 Z=4545.6Bi4TiO2F4(SeO3)44:41499.66monoclinicP21/ca=7.0237 b=6.6824 c=17.3240 β=106.637 Z=2779.076.393colourlessBi4NbO3F3(SeO3)44:31541.67monoclinicP21/ca=7.0448 b=6.6814 c=17.4051 β=106.931 Z=2783.736.533colourlessBi4TeO4F2(TeO3)2(SeO3)22:21670.64monoclinicP21/ca=7.0304 b=6.6782 c=17.355 β=106.155 Z=2782.667.089colourlessBi2F2(MoO4)(SeO3)1:2742.86monoclinicP21/ca=7.1005 b=9.660 c=12.972 β=12.091 Z=4753.826.546colourlessBi2ZrO2F2(SeO3)22:2833.10triclinicPa=5.8047 b=6.3469 c=6.7419 α=77.665 β=71.365 γ=72.795 Z=1222.876.207colourlessPbBi(SeO3)2F2:1orthorhombicPca21a=12.9672 b=4.5022 c=11.8221SHG 10.5×KDP; band gap 3.75 eV SHG=second harmonic generator
References