Nitride fluoride
Nitride fluorides containing nitride and fluoride ions with the formula NF4-. They can be electronically equivalent to a pair of oxide ions O24-. Nitride fluorides were discovered in 1996 by Lavalle et al. They heated diammonium technetium hexafluoride to 300 °C to yield TcNF.[1] Another preparation is to heat a fluoride compound with a nitride compound in a solid state reaction.[2] The fluorimido ion is F-N2- and is found in a rhenium compound.[3]
name | formula | N:F ratio | system | space group | unit cell (Å) | volume | density | properties | references |
---|---|---|---|---|---|---|---|---|---|
dimagnesium fluoride nitride | L-Mg2NF | 1:1 | tetragonal | I41/amd | a = 4.186, c = 10.042 | decompose over 1000 °C to MgF2, Mg gas and N2 | [1][4] | ||
H-Mg2NF | 1:1 | H for 1250-1350 °C and 20 kbar | [1][4] | ||||||
Mg3NF3 | 1:3 | cubic | Pm3m | a = 4.216 | light green | [1][4] | |||
dicalcium fluoride nitride | Ca2NF | 1:1 | cubic | Fd3m | a = 10.0215, Z = 16 | 1006.46 | 2.987 | light yellow | [1] |
dichromium fluoride nitride | Cr2NF3 | 1:3 | dark green | [5] | |||||
dicobalt fluoride nitride | Co2NF | 1:1 | [1] | ||||||
dicopper fluoride nitride | Cu2NF | 1:1 | [1] | ||||||
CaMgNF | 1:1 | [1] | |||||||
Fe4N3F3 | 1:1 | [6] | |||||||
α | Zn2NF | 1:1 | orthorhombic | P212121 | a = 5.850, b = 5.892, c = 6.536 | band gap 2.7 eV | [1] | ||
β | tetragonal | P41212 | a = 5.873, c = 6.532 | band gap 2.8 eV | |||||
Zn9N4F6 | 2:3 | 2 allotropes | [1] | ||||||
Zn7N4F | 4:1 | [1] | |||||||
distrontium fluoride nitride | Sr2NF | 1:1 | Fd3m | a = 10.692, Z = 16 | yellowish brown | [1][7] | |||
Fd3m | a = 10.765, Z = 16 | dark red | [7] | ||||||
SrCaNF | 1:1 | cubic | Fd3m | a = 10.340, Z = 16 | 1105.6 | 3.862 | yellow | [8] | |
YNF3 | 1:3 | hexagonal | a = 5.93, c = 4.79 | [9] | |||||
Zr4ON3F5 | 3:5 | monoclinic | P1121/b | a = 5.1217, b = 21.513, c = 5.3669, γ = 90.128°, Z = 4 | |||||
ZrNF | 1:1 | monoclinic | P21/c | a = 5.227, b = 5.026, c = 5.191, β = 98.98° | [1] | ||||
NaZr3N3F4 | 3:4 | P63/mmc | a = 3.654, c = 18.266 | [10] | |||||
TcNF | 1:1 | hexagonal | a = 5.98, c = 4.79 | [1] | |||||
dibarium fluoride nitride | Ba2NF | 1:1 | Fm3m | a = 5.679, Z = 2 | dark violet | [11] | |||
LaNxF3(1-x} | x:3(1-x} | cubic | a = 5.847–5.871 | [1] | |||||
Ce3NF6 | 1:6 | a = 5.8027 | F− conductor | [12][2] | |||||
Pr3NF6 | 1:6 | a = 5.7723 | [12] | ||||||
Gd3NF6 | 1:6 | cubic | a = 5.617 | [1] | |||||
Ce2MnN3F2−δ | tetragonal | P4/nmm | a = 3.8554, c = 13.088 | Nitridomanganate | [13] | ||||
LiSr2[TaN3]F | 3:1 | orthorhombic | Pbca | a = 10.768, b = 5.591, c = 15.891, Z 8 | 956.7 | Nitridotantalate, red, air sensitive | [14] | ||
ReNF | 1:1 | tetragonal | a = 5.88, c = 13.00 | [1] | |||||
Bi3NF6 | 1:6 | orthorhombic | Pbcm | a = 5.8174, b = 5.7018, c = 18.5113, Z = 4 | 614.01 | 8.165 | grey, moisture sensitive | [15] | |
ThNF | 1:1 | rhombohedral | a = 7.13 | [1] | |||||
ThNxF4-3x | tetragonal | [1] | |||||||
UNxFy (UNF) | 1:1 | orthorhombic | a = 5.632–5.643, b = 5.602–5.610, c = 5.712–5.707 | [1] | |||||
Complexes | |||||||||
(AsPh+ 4)2[O2(TcNF2)2]2- | 1:2 | yellow, O-bridged | [16] | ||||||
Rb4[O(TcNF4)2] | 1:4 | orange yellow | [16] | ||||||
Cs4[O(TcNF4)2] | 1:4 | orange yellow | [16] | ||||||
H[TcNF4] | 1:4 | [16] | |||||||
(NEt4)3(NH4)[Tc4N4O4F8] | yellow green | [16] | |||||||
molecules | |||||||||
phosphonitrile fluoride (trimer) | (NPF2)3 | 1:2 | rhombohedral | triple point 27.8 °C; refractive index nα = 1.388, nβ = 1.419, nγ = 1.443 | [17][18] | ||||
phosphonitrile fluoride (tetramer) | (NPF2)4 | 1:2 | monoclinic | triple point 30.5 °C | [17] | ||||
poly-phosphonitrile fluoride | (NPF2)n | 1:2 | [17] | ||||||
ReNF3 | 1:3 | brown | [19] | ||||||
rhenium tetrafluoride nitride | ReNF4 | 1:4 | orthorhombic | a = 5.64, b = 14.76, c = 4.26 | 354.6 | yellow, molecular, mp 85 °C | [19] | ||
fluoroimidorhenium pentafluoride | ReNF6 | 1:6 | monoclinic | a = 5.298, b = 9.286, c = 9.979, β = 109.4, Z = 4 | 463.2 | 4.507 | orange, molecular, N-F bonded, mp 80 °C | [19] |
References
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- ^ Dehnicke, Kurt.; Straehle, Joachim. (May 1993). "N-Halogenoimido complexes of transition metals". Chemical Reviews. 93 (3): 981–994. doi:10.1021/cr00019a007. ISSN 0009-2665.
- ^ a b c Andersson, Sten (April 1970). "Magnesium nitride fluorides". Journal of Solid State Chemistry. 1 (3–4): 306–309. doi:10.1016/0022-4596(70)90109-X.
- ^ Westland, Alan D. (February 1973). "The reaction of chromium(II) fluoride with nitrogen". Journal of Inorganic and Nuclear Chemistry. 35 (2): 451–456. doi:10.1016/0022-1902(73)80556-1.
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- ^ a b Wagner, T.R. (November 2002). "Preparation and single-crystal structure analysis of Sr2NF". Journal of Solid State Chemistry. 169 (1): 13–18. Bibcode:2002JSSCh.169...13W. doi:10.1016/S0022-4596(02)00002-6.
- ^ Keino, Oscar Kipruto (December 2017). "Investigations of Mixed-Anion Analogs of Manganite Perovskites and Bimetallic Group II Nitride Fluorides".
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- ^ Stoltz, C.; Ramesha, K.; Piccoli, P.; Toby, B. H.; Eichhorn, B. W. (October 2005). "A 0.3 ZrNF 1.3 Phases (A = Na, K) with Layered ZrNCl-Type Structures Prepared by Anion Metathesis". Chemistry of Materials. 17 (21): 5291–5296. doi:10.1021/cm051018h. ISSN 0897-4756.
- ^ Seibel, H; Wagner, T.R (August 2004). "Preparation and crystal structure of Ba2NF". Journal of Solid State Chemistry. 177 (8): 2772–2776. Bibcode:2004JSSCh.177.2772S. doi:10.1016/j.jssc.2004.04.026.
- ^ a b Vogt, T.; Schweda, E.; Laval, J.P.; Frit, B. (December 1989). "Neutron powder investigation of praseodymium and cerium nitride fluoride solid solutions". Journal of Solid State Chemistry. 83 (2): 324–331. Bibcode:1989JSSCh..83..324V. doi:10.1016/0022-4596(89)90182-5.
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- ^ Pust, Philipp; Schnick, Wolfgang (September 2011). "LiSr2[TaN3]F – a Single Chain Nitridotantalate". Zeitschrift für anorganische und allgemeine Chemie. 637 (11): 1486–1489. doi:10.1002/zaac.201100207.
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