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A phosphate phosphite is a chemical compound or salt that contains both phosphate and phosphite anions (PO3−
4 and PO3−
3). These are mixed anion compounds or mixed valence compounds. Some have third anions.
Phosphate phosphites frequently occur as metal-organic framework compounds which are of research interest for gas storage, detection or catalysis. In these phosphate and phosphite form bridging ligands to hard metal ions. Protonated amines are templates.[1]
A phosphate phosphite compound may also be called a phosphite phosphate.
Phosphate phosphite compounds are frequently produced by hydrothermal synthesis, in which a water solution of ingredients is enclosed in a sealed container and heated. Phosphate may be reduced to phosphite or phosphite oxidised to phosphate in this process.
Related to these are the nitrite nitrates and arsenate arsenites.
| name | formula | ratio PO4:PO3 | mw | system | space group | unit cell (Å) | volume | density | properties | references |
|---|---|---|---|---|---|---|---|---|---|---|
| 1,4-Diammoniumbutane | [(H3N(CH2)4NH3)2][Sc5F4(HPO3)6(H2PO3)2(PO4)] | 1:8 | 1300.8 | monoclinic | C2/m | a = 12.888, b = 14.835, c = 10.531, β = 103.093°, Z = 2 (at 93 K) |
1961.2 | [2] | ||
| Imidazole | [C3N2H5]2[VIII4(H2O)3(HPO3)4(HPO4)3] | 3:4 | 1003.766 | trigonal | P3c1 | a = 13.499, c = 18.120, Z = 12 |
2280.35 | 2.143 | green | [3] |
| (C3H10NO)6[V8(H2O)6(PO4)2(HPO3)12] | 2:12 | trigonal | P3c1 | a = 13.5393, c = 18.2283 |
2893.8 | green | [4] | |||
| (C4H8N2)3[V8(H2O)6(PO4)2(HPO3)12] | 2:12 | trigonal | P3c1 | a = 13.4922, c = 18.3589 |
2894.3 | green | [4] | |||
| L=cyclopentylammonium | (L)4[V9(H2O)6(HPO3)10.5(HPO4)3.5(H2PO4)3] | hexagonal | P63/m | a=13.4107 c =27.5678 Z=1 | 4293.7 | 1.81 | [5] | |||
| Mn5(μ-OH2)2(PO4)2(HPO3)2·2H2O | 2:2 | [6] | ||||||||
| Iron(III) 2,2′-bipyridine phosphite−phposphate | [FeIII(2,2′-bipyridine)(HPO3)(H2PO4)] | 1:1 | monoclinic | a = 10.5407, b = 6.4298, c = 10.6172, β = 113.890°, Z = 2 |
1.878 | colourless | [7] | |||
| FeIII(1,10-phenanthroline)(HPO3)(H2PO3) | 1:1 | monoclinic | P21/m | a = 10.180, b = 6.424, c = 11.6668, β = 115.59°, Z = 4 |
668.2 | 1.880 | yellow | [8] | ||
| {[C3H4N2]2[C5NH5]14[H15(Mo2O4)8Co16(PO4)14(HPO3)10(OH)3]}·5H2O | 14:10 | 6685.09 | monoclinic | C2/m | a = 29.724, b = 24.623, c = 20.687, β = 126.760°, Z = 2 |
12130 | 1.830 | red | [9] | |
| Tris(4-pyridyl)triazine zinc phosphate–phosphite | C54H60N18O42P10Zn9 | ? | 2531.23 | hexagonal | P63 | a = 15.6464, c = 19.788, Z = 2 |
4195.2 | yellow | [10] | |
| 1-(2-Aminoethyl)piperazine tetrazinc diphosphate diphosphite | (C6H17N3)[Zn4(PO4)2(HPO3)2] | 2:2 | monoclinic | Cc | a = 5.327, b = 17.146, c = 22.071, β = 94.58°, Z = 4 |
2009.5 | [11] | |||
| Zinc phosphate-phosphite | trans-(C6H15N2)2Zn4(PO4)2(HPO3)2 | 2:2 | 841.78 | monoclinic | P21/n | a = 9.706, b = 9.993, c = 27.557, β = 96.795°, Z = 4 |
2654.0 | 2.107 | [12] | |
| 1,3-Cyclohexanebis(methylamine) | [H2CHBMA][Zn1.5Mn(HPO3)2.5(PO4)]·5H2O | 1:5 | monoclinic | C2/c | a = 33.929, b = 13.045, c = 8.971, β = 104.37°, Z = 2 |
3846.5 | [13] | |||
| 2-Hydroxypropylammonium dizinc hydrogenphosphite phosphate | [C3H6(OH)NH3][Zn2(HPO3)(PO4)] | 1:1 | triclinic | P1 | a = 5.302, b = 8.934, c = 12.686, α = 74.35°, β = 88.54°, γ = 73.94° |
[14] | ||||
|
(Bis(Cyclohexane-1,3-bis(methylammonium)) bis(μ4-phosphato)-tetrakis(μ3-hydrogen phosphito)-manganese-tetra-zinc dihydrate) |
[H2CHBMA][Zn2Mn0.5(PO4)(HPO3)2]·H2O | 1:2 | monoclinic | C2/c | a = 33.929, b = 13.045, c = 8.971, β = 104.37°, Z = 4 |
3846 | [15] | |||
| Triethylenetetramine | [C6N4H22]0.5[Zn3(PO4)2(HPO3)] | 2:1 | [16] | |||||||
| Zinc potassium phosphite phosphate | [17] | |||||||||
| N,N,N′,N′-tetramethylenediamine (TMEDA) | (C6N2H18)2(C6N2H17)Ga15(OH)8(PO4)2(HPO4)12(HPO3)6·2H2O | 14:6 | P3 | a = 19.046, c = 8.331, Z = 1 |
2617.1 | [18] | ||||
| Zirconium phosphate phosphite | γ-ZrPO4·HPO2(OH)·2H2O | 1:1 | layered | [19] | ||||||
| Cadmium 1,10-phenanthroline phosphate phosphite oxalate | Cd2(phen)2(H2PO4)(H2PO3)(C2O4) | 1:1 | chains | [20] | ||||||
| catena-(Tris(hexane-1,6-diaminium) octakis(μ3-phosphonato)-hexakis(μ3-phosphato)-tris(μ2-hydrogen phosphato)hexaaqua-nonaindium | [In9(H2O)6(HPO3)13(H2PO3)2(PO4)(HPO4)][(C6N2H18)3] | 2:15 | hexagonal | P63/m | a = 13.7676, c = 28.062 |
[21] | ||||
| 4-Bipyridine | (C10H10N2)1.5(H3O)3[In18(H2O)12(HPO4)12(HPO3)16(H2PO3)6] | 12:16 | hexagonal | P63/m | a = 13.784, c = 28.058 |
4617 | [22] | |||
| catena-(Bis(propane-1,3-diammonium)-octakis(μ3-phosphito)-pentakis(μ2-hydrogen phosphito)-(μ2-dihydrogenphosphato)-hexaindium) | [In6(HPO3)8(H2PO3)5(H2PO4)]·(C3N2H12)2 | 1:11 | orthorhombic | Pna21 | a = 26.7974, b = 9.8459, c = 18.5441, Z = 4 |
4892.8 | [23] | |||
| Pb2Al(HPO3)3(H2PO4) | 1:3 | orthorhombic | Cmcm | [24] | ||||||
| Pb2Ga(HPO3)3(H2PO4) | 1:3 | orthorhombic | Cmcm | [24] | ||||||
| Pb2Al(HPO3)2(HPO4)(H2PO4) | 2:2 | orthorhombic | Cmcm | [24] | ||||||
| Rubidium uranium(VI,IV) phosphate-phosphite | Rb2[(UO2)2(UIV)(PO4)2(HPO3)2(H2O)] | 2:2 | 1316.94 | monoclinic | C2/c | a = 16.2421, b = 10.5049, c = 11.0936, β = 98.745° |
1870.8 | 4.702 | orange-yellow | [25] |
| Caesium uranium(IV) phosphate-phosphite | Cs2[UIV3(PO4)2(HPO3)4] | 2:4 | 1489.76 | monoclinic | C2/m | a = 25.7396 b = 5.5906, c = 7.6334, β = 98.964°, Z = 2 |
1085.03 | 4.560 | blue-green | [25] |
| Caesium uranium(VI,IV) phosphate-phosphite | Cs2[(UO2)(UIV)(HPO4)2(HPO3)2] | 2:2 | 1123.78 | triclinic | P1 | a = 6.8571, b = 11.1190, c = 12.0391, α = 63.861°, β = 77.481°, γ = 79.331°, Z = 2 |
800.22 | 4.664 | yellow-orange | [25] |
| Cs4[(UO2)8(HPO4)5(HPO3)5]·4H2O | 5:5 | monoclinic | C2/c | a = 18.5005, b = 10.971, c = 14.4752, β = 104.513° |
yellow | [26] | ||||
| Cs4[UIV6(PO4)8(HPO4)(HPO3)] | 9:1 | orthorhombic | Pmmn | a = 6.9321, b = 26.935, c = 10.9137 |
pale green | [26] | ||||
| Cs10[UIV10(PO4)4(HPO4)14(HPO3)5]·H2O | 15:5 | monoclinic | C2/m | a = 19.2966, b = 20.2914, c = 13.9293, β = 126.839° |
green | [26] | ||||
| Tl3[(UO2)2(H1.5PO4)(H0.5PO4)(H1.5PO3)2] | 2:2 | 1503.07 | tetragonal | P42/mbc | a = 13.5382, c = 19.4008, Z = 8 |
3555.8 | 5.615 | yellow-green | [27] | |
| Tl2[(UO2)2(UIV)(H2O)(PO4)2(HPO3)2] | 2:2 | 1550.71 | monoclinic | C2/c | a = 16.2360, b = 10.4995, c = 11.0003, β = 99.027°, Z = 4 |
1851.99 | 5.562 | light green | [27] |