Nitrate nitrite

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A nitrate nitrite, or nitrite nitrate, is a coordination complex or other chemical compound that contains both nitrite (NO−2) and nitrate (NO−3) anions. They are mixed-anion compounds, and they are mixed-valence compounds. Some have third anions. Many nitrite nitrate compounds are coordination complexes of cobalt. Such a substance was discovered by Wolcott Gibbs and Frederick Genth in 1857.[citation needed]

Production

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Mercury(II) nitrate and potassium nitrate in water solution produce the salt tripotassium tetranitratomercurate(II) nitrate K3[Hg(NO2)4]NO3.[1]

Properties

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On heating, nitrate nitrites lose NO2 and NO and yield metal oxides.

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Other compounds having an element in two different anion states include the sulfate sulfites, the phosphate phosphites, arsenate arsenites and the selenate selenites.

List

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name formula ratio

NO3:NO2

mw system space group unit cell Å volume density properties references
[Cr(NH3)5(NO2)] ·(NO3)2 [2]
trans-dinitrotetraamminecobalt(III) nitrate monohydrate [Co(NO2)2(NH3)4]NO3•H2O 1:2 orthorhombic P212121 a=10.02, b=6.02, c=16.84, Z=4 1.84 [3]
cis-dinitrotetraamminecobalt(III) nitrate [Co(NO2)2(NH3)4]NO3 1:2 orthorhombic P212121 a=12.19, b=7.18, c=10.92, Z=4 1.95 [4]
[cis-β-Co(trien)(NO2)2]NO3 1:2 monoclinic P21/n a = 7.604, b = 13.019, c = 14.472, β = 98.13°, Z = 4 1418.26 1.682 racemate [5]
[cis-α-Co(tren)(NO2)2]NO3•13H2O 1:2 P21/c [6]
trans-Co[(en2)(NO2)2]NO3 1:2 [7]
trans-[Co(2,3,2-tet)(NO2)2]NO3 1:2 373.21 P21/n a=8.490, b=8.884, c=18.580 and β=95.08°;, Z=4 1395.89 1.776 [8]
trans-[Co(2,3,2-tet)(NO2)2]NO3 373.21 Pn a=6.493, b=11.731, c=9.325 β=100.13°; M.W.=373.21, Z=2)= 699.21 1.773 [8]
cis-[Co(Hao)2(NO2)2]NO3 (Hao = 3-amino-3-methyl-2-butanone oxime) monoclinic P21/n a= 8.1 60, b= 17.250, c= 13.745, β= 104.77° [9]
[Co(pic)2(NO2)2]NO3.½H2O pic=2-picolylamine [10]
cis-[Co(phen)2(NO2)2]NO3 · 2 H2O phen=1,10-phenanthroline [11]
Sparteine copper(II) nitrate nitrite Cu(C15H26N2)(NO3)(NO2) 1:1 green [12]
trans-diammine-cis-dinitratonitronitrosyl ruthenium(II) RuNO(NH3)2(NO3)2(NO2)
bis(nitrotriamminepalladium(II)) tetraamminepalladium(II) tetranitrate [Pd(NO2)(NH3)3]2[Pd(NH3)4](NO3)4 4:1 829.20 tetragonal I42m a=7.637 c=21.610 Z=2 2.18 bright yellow [13]
bis(1,10-Phenanthroline)-(nitroso-O)-(nitrato-O,O')-cadmium(ii) Cd(phen)2(NO3)(NO2) monoclinic P21/c a 6.872 b 9.690 c 20.852 β 93.59° [14]
catena-((μ2-Nitroso-O,O')-aqua-(nitrato-O,O')-(1,10-phenanthroline)-cadmium(ii)) [Cd(phen)(NO3)(NO2)(H2O)]n monoclinic Cc a 11.703Å b 15.242 c 13.451 β 106.321° [14]
[NO2(NH3)2Pt(C5H4NO)2Pt(NH3)2NO2](NO3)2.H2O yellow [15]
K3[Hg(NO2)4]NO3 1:4 orthorhombic Pnma a=12.12 b=10.58 c=9.28 Z=4 3.14 pale yellow [1]
Pb2(NO2)(NO3)(SeO3) 1:1 orthorhombic Pmn21 a=5.529, b=10.357, c=6.811, Z=2 390 colourless [16]
K2Pb(NO2)3(NO3) 1:3 503.4 orthorhombic Pbca a = 6.766, b = 11.999, c = 26.61, Z = 8 2160 3.095 yellow orange [17]
[Pb3(OH)4Co(NO2)3](NO3)(NO2)·2H2O 1:4 orthorhombic Pbca a = 8.9414, b = 14.5330, c = 24.9383, Z = 8 3240.6

References

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