An oxalate chloride or oxalato chloride is a mixed anion compound contains both oxalate and chloride anions.
Related compounds include oxalate fluorides [1] and oxalate bromides. [2]
Oxalate chlorides may be produced by treating an oxalate salt with concentrated hydrochloric acid, or with a metal oxide dissolved in oxalic acid and hydrochloric acid solutions that are evaporated. [3]
name | formula | crystal | space group | cell | volume | density | comment | ref |
---|---|---|---|---|---|---|---|---|
Novgorodovaite | Ca2(C2O4)Cl2•2H2O | monoclinic | I2/m | a=6.936 b=7.382 c=7.443 β=94.3° | loses water over 205°C; refract: α=1.500 β=1.545 γ=1.568 2V=71° (−) | [4] [5] [6] | ||
Ca2(C2O4)Cl2•7H2O | triclinic | P1 | a = 7.3928 b = 8.9925 c = 10.484 α = 84.070 β = 70.95 γ = 88.545° | 655.3 | looses water at 25°C to 2H2O; refract: α=1.571 β=1.648 γ=1.718 2V=87° (−) | [4] [7] | ||
Ca4(C2O4)3Cl2•8H2O | dubious | [4] | ||||||
octakis(ethyl(dimethyl)ammonium) dodecakis(μ-oxalato)-tetrachloro-tetra-chromium-tetra-manganese | [NH(CH3)2(C2H5)]8[Mn4Cl4Cr4(C2O4)12] | monoclinic | P21 | a=13.8321 b=17.1042 c=20.4209 β=91.874° | [8] | |||
octakis(diethyl(methyl)ammonium) dodecakis(μ-oxalato)-tetrachloro-tetra-chromium-tetra-manganese | [NH(CH3)(C2H5)2]8[Mn4Cl4Cr4(C2O4)12] | monoclinic | P21 | a=14.1863 b=17.3479 c=20.4140 β=91.937° | [8] | |||
DABCO=1,4-diazabicyclo[2.2.2]octane; | (DABCO-H+)2(DABCO-2H2+)[MnII(CH3OH)(Cl−)CrIII(oxalate)3]2−2(CH3OH) | triclinic | P1 | a=8.093 b=9.070 c=19.574 α=83.471° β=89.875° γ=86.765° | [9] | |||
tetrakis(methylammonium) tetrakis(μ-oxalato)-octachloro-tetra-iron(iii) pentahydrate | (MeNH3)2[Fe2(ox)2Cl4]·2.5H2O | monoclinic | P21/c | a 10.7832 b 13.913 c 13.0578 β 104.060° | [10] | |||
methylammonium (μ-hydroxo)-bis(μ-oxalato)-dichloro-di-iron(iii) trihydrate | MeNH3[Fe2(OH)(ox)2Cl2]·2H2O | monoclinic | Cc | a=8.945 b=14.936 c=12.408 β=108.531° | [10] | |||
methylammonium oxonium bis(μ-oxalato)-(μ-oxo)-dichloro-di-iron(iii) dihydrate | (H3O)(MeNH3)[Fe2O(ox)2Cl2]·3H2O | orthorhombic | Fdd2 | a=14.914 b=23.507 c=9.261 | [10] | |||
DMF = dimethylformamide | Fe2(C2O4)Cl4(DMF)4 | triclinic | P1 | a=8.3919 b=8.7834 c=11.2881 α=70.248° β=71.993° γ=64.423° | [11] | |||
(dimim)2[Fe2Cl4(μ-ox)] | ionic liquid | [12] | ||||||
L2=1,4-bis(imidazol-1-ylmethyl)benzene bis(1,1'-(1,4-Phenylenebis(methylene))bis-1H-imidazol-3-ium) (μ2-oxalato)-tetrachloro-bis(oxalato)-di-iron(iii) | (H2-L2)2{Fe2(C2O4)3Cl4} | triclinic | P1 | a=10.6758 b=10.7457 c=10.8774 α=113.219° β=109.138° γ=99.294° Z=1 | 1020.8 | 1.624 | emerald | [13] |
tetramelaminium trioxalatoferrate(III) chloride dihydrate | (C3H7N6)4{Fe(C2O4)3}Cl·2H2O | monoclinic | P21/c | a=11.597 b=22.299 c=13.655 β=94.344° Z=4 | 3521 | 1.698 | green | [14] |
methylammonium (μ-aqua)-tris(μ-chloro)-(μ-oxalato)-iron(iii)-potassium | K(MeNH3)[Fe(ox)Cl3(H2O) | monoclinic | P21/m | a=8.725 b=7.508 c=9.026 β=112.421° | [10] | |||
diethylmethylammonium | [NH(CH3)(C2H5)2][FeCl2(C2O4)] | monoclinic | P21/c | a=8.5125 b=10.775 c=14.9703 β=104.798° Z=4 | 1327.6 | 1.516 | yellow; proton conductor | [15] |
bis(Tetramethylammonium) bis(μ2-oxalato)-tetrachloro-di-iron(iii) | Me4N[FeIII(ox)Cl2] | monoclinic | P21/c | a=7.9441 b=8.6093 c=17.8251 β=91.869 | [16] | |||
hexakis(Triethylammonium) hexakis(μ2-oxalato)-dodecachloro-hexa-iron(iii) | Et3NH[FeIII(ox)Cl2] | triclinic | P1 | a=10.9609 b=14.4602 c=14.5780 α=85.006° β=78.845° γ=83.0191 | [16] | |||
Triethylammonium (μ2-oxalato)-dichloro-iron(iii) | Et3NH[FeIII(ox)Cl2] | orthorhombic | Fdd2 | a=13.5878 b=37.972 c=10.8210 | [16] | |||
bis(Tetra-n-butylammonium) bis(μ2-oxalato)-tetrachloro-di-iron(iii) | n-Bu4N[FeIII(ox)Cl2] | monoclinic | P21/c | a=8.8836 b=15.1939 c=17.968 β=91.556° | [16] | |||
[Fe(oxalato)Cl2]3(3,5-dimethylpyrazole)2(3,5- dimethylpyrazolium)2 | monoclinic | C2/c | a=19.527 b=11.867 c=19.429 β=115.66° Z=4 | 4058.20 | 1.684 | green | [17] | |
BETS = Bis(ethylenedithio)tetraselenafulvalene | κ-BETS2[FeIII(C2O4)Cl2] | black; metallic; | [18] | |||||
bis(2-(5,6-dihydro[1,3]dithiolo[4,5-b][1,4]dithiin-2-ylidene)-5,6-dihydro[1,3]dithiolo[4,5-b][1,4]dithiin-1-ium) bis(μ-oxalato)-tetrachloro-di-iron(iii) | [BEDT-TTF][Fe(C2O4)Cl2] | triclinic | P1 | a=8.896 b=11.401 c=11.427 α=112.062° β=103.775° γ=100.328° | [19] | |||
BEDT-TTF = Bis(ethylenedithio)tetrathiafulvalene | (BEDT-TTF)[Fe(C2O4)Cl2](CH2Cl2) | monoclinic | P21/c | a=8.858 b=11.012 c=14.932 β=103.39° | [20] | |||
tris(ethylenediamine)cobalt(III)chloride oxalate trihydrate | [Co(en)3]Cl(C2O4)·3H2O | monoclinic | C2/c | a = 19.932 b = 9.3344 c = 19.088 β = 96.846° Z = 8 | [21] | |||
dpyam=di-2-pyridylamine; (μ2-Oxalato)-bis(di-2-pyridylamine)-dichloro-di-copper(ii) | Cu2(dpyam)2(μ-C2O4)(Cl)2 | triclinic | P1 | a=7.4122 b=8.6586 c=9.8002 α=87.900° β=72.022° γ=71.845° | [22] | |||
L = 3,5-dimethyl-1H-pyrazole | Cu2(C2O4)(L)2Cl2(MeOH)2 | triclinic | P1 | a=7.244 b=8.039 c=8.848 α=92.16° β=92.73° γ=96.21° | [23] | |||
bpy=bipyridine | [Fe(bpy)3]2[NbO(C2O4)3]Cl·11H2O | [24] | ||||||
[Fe(bpy)3]2[NbO(2O4)3]Cl·12H2O | orthorhombic | P212121 | a=14.975 b=21.708 c=22.351 Z=4 | 7266 | 1.530 | dark red | [24] | |
[Co(bpy)3]2[NbO(C2O4)3]Cl·11H2O | monoclinic | P21/c | a=23.548 b=13.631 c=22.812 β=101.04 | 7187 | 1.536 | orange red | [24] | |
[Co(bpy)3]2[NbO(C2O4)3]Cl·12H2O | orthorhombic | P212121 | a=15.103 b=22.075 c=22.386 Z=4 | 7463 | 1.495 | brown | [24] | |
[Ni(bpy)3]2[NbO(C2O4)3]Cl·11H2O | monoclinic | P21/c | a=23.875 b=13.265 c=23.115 β=101.69 Z=4 | 7169 | 1.539 | pink | [24] | |
[Ni(bpy)3]2[NbO(C2O4)3]Cl·12H2O | orthorhombic | P212121 | 15.058 b=22.039 c=22.398 Z=4 | 7433 | 1.500 | dark pink | [24] | |
[Cu(bpy)3]2[NbO(C2O4)3]Cl·12H2O | orthorhombic | P212121 | a=15.035 b=22.267 c=22.538 Z=4 | 7545 | 1.487 | blue | [24] | |
[Zn(bpy)3]2[NbO(C2O4)3]Cl·11H2O | monoclinic | P21/c | 24.070 b=13.332 c=23.168 β=102.19 Z=4 | 7267 | 1.530 | pink | [24] | |
[Zn(bpy)3]2[NbO(C2O4)3]Cl·12H2O | [24] | |||||||
tris(Tetraethylammonium) tetrakis(μ3-sulfido)-(oxalato-O,O')-trichloro-cyano-tri-iron-molybdenum | (Et4N)5{[C2O4)MoFe3S4Cl2]2(μ-CN)(μ-S)} | monoclinic | P21/n | a=10.331 b=22.580 c=19.083 β=91.97° | double cubane structure | [25] | ||
(μ2-Oxalato)-dichloro-bis(η6-p-cymene)-di-ruthenium | [Ru2(μ-η4-C2O4)Cl2(η6-p-PriC6H4Me)2] | monoclinic | P21/n | a=7.571 b=8.998 c=16.528 β=95.52° Z=2 | 1120.73 | yellow | [26] | |
chloro-(oxalato)-tris(pyridine)-rhodium | mer-[Rh(C2O4)Cl(py)3] | orthorhombic | P212121 | a=9.9999 b=12.0930 c=14.9368 Z=4 | 1806.2 | 1.705 | yellow | [27] |
CHLOROPENTAAMMINECHROMIUM(III) BIS(OXALATO)PALLADATE | [Cr(NH3)5Cl][Pd(C2O4)2] | triclinic | a = 3.225 b = 10.290 c = 11.390 α = 116.5° β = 97.9° γ = 91.2° | 334.5 | [28] | |||
C(NH2)3Cd(C2O4)Cl(H2O)·H2O | triclinic | P1 | a=6.8136 b=7.4890 c=10.0515 α=84.082° β=77.806° γ=88.813° | band gap 3.76 eV | [29] | |||
SnC2O4Cl2 | [30] | |||||||
SnC2O4Cl2 . CuBr2 1/4EtOH | green | [30] | ||||||
SnC2O4Cl2 . CuCl2 . H2O | green | [30] | ||||||
SnC2O4Cl2 . CoBr2 1/8EtOH | rose colour | [30] | ||||||
(Et4N)2C2O4 . SnCl2F2 . 2H2O: | white | [30] | ||||||
(Me4N)2Sn(C2O4)Cl2 | white | [30] | ||||||
(Et4N)2Sn(C2O4)Cl2 .(Et4N)2C2O4(SnCl4)2 . EtOH | white | [30] | ||||||
Sn(C2O4)2 . 2[SnCl4 . (Pyridine)2] | white | [30] | ||||||
(Et4N)2SnCl6 . (Et4N)2C2O4 . 2SnC2O4(OH)2 | white | [30] | ||||||
(NH4)2Sb(C2O4)Cl3 | orthorhombic | P212121 | a=8.6961 b=8.7844 c=13.5956 Z=4 | 1038.57 | 2.253 | [31] | ||
K2Sb(C2O4)Cl3 | orthorhombic | P212121 | a=8.3966 b=8.6023 c=13,6342 Z=4 | 984.80 | 2.660 | [31] | ||
Rb2Sb(C2O4)Cl3 | orthorhombic | P212121 | a=8.6769 b=8.8485 c=13.8014 Z=4 | 1059.64 | 3.053 | birefringence 0.22@546 nm;NLO 2.1 × KH2PO4 | [31] | |
Ba2Mn2Cl2(C2O4)3·4H2O | monoclinic | C2/c | a=22.916 b=8.248 c=9.904 β=99.53° | [32] | ||||
Ba2Fe2Cl2(C2O4)3·4H2O | monoclinic | C2/c | a=22.798 b=8.297 c=9.849 β=99.90° | [32] | ||||
Ba2Co2Cl2(C2O4)3·4H2O | monoclinic | C2/c | a=22.675 b=8.230 c=9.757 β=100.00° | purple | [33] [32] | |||
BaCd(C2O4)1.5Cl(H2O)2 | monoclinic | C2/c | a=23.101 b=8.253 c=10.040 β 99.14° | band gap 4.53 eV | [29] | |||
La(C2O4)Cl | monoclinic | P21/n | a=8.489 b=16.19 c=5.880 β=104.14° | [34] [35] | ||||
La(C2O4)Cl·3H2O | [36] | |||||||
Ce(C2O4)Cl | [1] | |||||||
Ce(C2O4)Cl·3H2O | [36] | |||||||
Pr(C2O4)Cl·3H2O | stable to 163°C | [36] [1] | ||||||
Nd(C2O4)Cl·3H2O | stable to 167°C; dec 510° to NdOCl | [36] [1] [37] | ||||||
Sm(C2O4)Cl·3H2O | stable to 174°C; dec at 347° to EuC2O4 | [36] [1] | ||||||
Eu(C2O4)Cl·3H2O | stable to 178°C | [36] [1] | ||||||
Gd(C2O4)Cl·3H2O | [36] [38] | |||||||
(Et4N)2Sn(C2O4)Cl2 . (Et4N)2C2O4(SnCl4)2 . EtOH | [30] | |||||||
[(Me4N)2C2O4SnCl4]2 . [(Me4N)2Sn(C2O4)2Cl2]2 . Sn(WO4)2 | [30] | |||||||
[Pt(HC2O4)Cl3]2− | [39] | |||||||
[Pt(HC2O4)(C2O4)Cl]2− | [39] | |||||||
K2[Pt(C2O4)Cl2]·H2O | triclinic | P1 | a=7.136 b=7.308 c=10.130 α=86.75° β=74.58° γ=54.28° Z=2 | 457.7 | 3.27 | [40] [39] | ||
[Pt(NH3)5Cl][Cr(C2O4)3] · 4H2O | orthorhombic | Pccn | a=38.901 b=13.7267 c=14.9141 | [41] | ||||
[Pt(NH3)5Cl][Fe(C2O4)3] · 4H2O | orthorhombic | Pccn | a=39.0123 b=13.7232 c=14.8990 | [41] | ||||
[Pt(NH3)5Cl][Co(C2O4)3] · 2H2O | monoclinic | P21 | a=8.5158 b=12.6409 c=8.5726 β=105.000° | [41] | ||||
lead chloride oxalate | Pb2Cl2(C2O4) | monoclinic | C2/m | a=5.9411 b=5.8714 c=9.4212 β=95.232° Z=2 | 327.26 | 5.82 | dec 350°C to Pb, Pb5O2Cl6 and Pb3O2Cl2 | [42] |
Th4Cl4(C2O4)6•20H2O | ||||||||
Plutonium(III) oxalato chloride | ?Pu(C2O4)Cl·3H2O | blue; biaxial (−) | [43] | |||||
Am(C2O4)Cl·3H2O | monoclinic | P21/n | a=5.852 b=15.823 c=8.351 β=104.243° | [44] |
Potassium ferrioxalate, also called potassium trisoxalatoferrate or potassium tris(oxalato)ferrate(III) is a chemical compound with the formula K3[Fe(C2O4)3]. It often occurs as the trihydrate K3[Fe(C2O4)3]·3H2O. Both are crystalline compounds, lime green in colour.
Caesium oxalate, or dicesium oxalate, or cesium oxalate is a chemical compound with the chemical formula Cs2C2O4. It is a caesium salt of oxalic acid. It consists of caesium cations Cs+ and oxalate anions C2O2−4.
The borate fluorides or fluoroborates are compounds containing borate or complex borate ions along with fluoride ions that form salts with cations such as metals. They are in the broader category of mixed anion compounds. They are not to be confused with tetrafluoroborates (BF4) or the fluorooxoborates which have fluorine bonded to boron.
A selenite fluoride is a chemical compound or salt that contains fluoride and selenite anions. These are mixed anion compounds. Some have third anions, including nitrate, molybdate, oxalate, selenate, silicate and tellurate.
The borophosphates are mixed anion compounds containing borate and phosphate anions, which may be joined together by a common oxygen atom. Compounds that contain water or hydroxy groups can also be included in the class of compounds.
The borate chlorides are chemical compounds that contain both borate ions and chloride ions. They are mixed anion compounds. Many of them are minerals. Those minerals that crystallise with water (hydrates) may be found in evaporite deposits formed when mineral water has dried out.
The borate bromides are mixed anion compounds that contain borate and bromide anions. They are in the borate halide family of compounds which also includes borate fluorides, borate chlorides, and borate iodides.
The borate iodides are mixed anion compounds that contain both borate and iodide anions. They are in the borate halide family of compounds which also includes borate fluorides, borate chlorides, and borate bromides.
Transition metal oxalate complexes are coordination complexes with oxalate (C2O42−) ligands. Some are useful commercially, but the topic has attracted regular scholarly scrutiny. Oxalate (C2O42-) is a kind of dicarboxylate ligand. As a small, symmetrical dinegative ion, oxalate commonly forms five-membered MO2C2 chelate rings. Mixed ligand complexes are known, e.g., [Co(C2O4)(NH3)4]κ+.
Selenogallates are chemical compounds which contain anionic units of selenium connected to gallium. They can be considered as gallates where selenium substitutes for oxygen. Similar compounds include the thiogallates and selenostannates. They are in the category of chalcogenotrielates or more broadly chalcogenometallates.
Sulfidostannates, or thiostannates are chemical compounds containing anions composed of tin linked with sulfur. They can be considered as stannates with sulfur substituting for oxygen. Related compounds include the thiosilicates, and thiogermanates, and by varying the chalcogen: selenostannates, and tellurostannates. Oxothiostannates have oxygen in addition to sulfur. Thiostannates can be classed as chalcogenidometalates, thiometallates, chalcogenidotetrelates, thiotetrelates, and chalcogenidostannates. Tin is almost always in the +4 oxidation state in thiostannates, although a couple of mixed sulfides in the +2 state are known,
Yttrium oxalate is an inorganic compound, a salt of yttrium and oxalic acid with the chemical formula Y2(C2O4)3. The compound does not dissolve in water and forms crystalline hydrates—colorless crystals.
The carbonate oxalates are mixed anion compounds that contain both carbonate (CO3) and oxalate (C2O4) anions. Most compounds incorporate large trivalent metal ions, such as the rare earth elements. Some carbonate oxalate compounds of variable composition are formed by heating oxalates.
The oxalate phosphates are chemical compounds containing oxalate and phosphate anions. They are also called oxalatophosphates or phosphate oxalates. Some oxalate-phosphate minerals found in bat guano deposits are known. Oxalate phosphates can form metal organic framework compounds.
An oxalate nitrate is a chemical compound or salt that contains oxalate and nitrate anions (NO3- and C2O42-). These are mixed anion compounds. Some have third anions. Oxalate acts as a ligand, which normally complexes two metal atoms.
The oxalate phosphites are chemical compounds containing oxalate and phosphite anions. They are also called oxalatophosphites or phosphite oxalates. Oxalate phosphates can form metal organic framework compounds.
Selenidogermanates are compounds with anions with selenium bound to germanium. They are analogous with germanates, thiogermanates, and telluridogermanates.
Sulfidogermanates or thiogermanates are chemical compounds containing anions with sulfur atoms bound to germanium. They are in the class of chalcogenidotetrelates. Related compounds include thiosilicates, thiostannates, selenidogermanates, telluridogermanates and selenidostannates.
Oxalate sulfates are mixed anion compounds containing oxalate and sulfate. They are mostly transparent, and any colour comes from the cations.
Europium compounds are compounds formed by the lanthanide metal europium (Eu). In these compounds, europium generally exhibits the +3 oxidation state, such as EuCl3, Eu(NO3)3 and Eu(CH3COO)3. Compounds with europium in the +2 oxidation state are also known. The +2 ion of europium is the most stable divalent ion of lanthanide metals in aqueous solution. Many europium compounds fluoresce under ultraviolet light due to the excitation of electrons to higher energy levels. Lipophilic europium complexes often feature acetylacetonate-like ligands, e.g., Eufod.