KSnF3 *1/22
Sn . .
Sn-F.=2.04 ?, a Sn-F.=2.27 ?, F.SnF.=89.70, a
SnF.Sn=1560. , ,
2 [72].
SnF2-NH4F-H2O NH4Sn2F5. O
[73]. [Sn2F5]-
Sn(II). Sn
- F
Sn-F=2.011 2.086 A. Sn SnF4E c
(Sn-F=2.001A) (2.163-2.341A).
Sn-F=2.001 A
Sn-F=2.011 A. a=12.86, b=10.05,
c=7.91?, Z=6. 3.55,
3.42 /3.
n=1.51 [ ]. .
NH4F SnF2. 160-200 0.
(N2H6)(SnF3)2 SnF3-
. Sn-F=2.053-2.096 A,
FSnF=87.3. F
2.66-2.75 A. SnF3-
M(SnF3)2*6H2O (M=Co,Zn,Cd). Sn-F
1.98-2.02 A [90] 2.025-2.057 A [91].
FSnF=84.9, .
Sn-F
3.2-3.5 A.
NHF OHF.
[Sn2F3][BF4] Sn2F3- ,
Sn Sn-F=2.09 A
FSnF=84. [Sn3F5][BF4] Sn3F5+
Sn6F10 (Sn-F=2.06 2.21 A) [114].
[Sn6F10][TiF6] [Sn6F10][NbOF5],
{(Sn6F10)2+}n , [TiF6]2-
[NbOF5]2-. Sn [Sn6F10][TiF6]
F Sn-F=2.04-2.26A
FSnF=78.0-88.8. , Sn
F 2.40 3.10A [115].
2600 . 300-8000
, 8800
.
SnO2. :
[Sn6F10][TiF6] = 6SnO2 + 1/2TiO2 + 1/2TiF4 + 14HF
[Sn2F2][TiF6][NH4F]
K3(SnF3)[TiF6], ,
.
{(Sn6F10)2+}n [Sn6F10][NbOF5]
. Sn F
2.057-2.275 A -
FSnF=76.9-87.7. Sn 3-5
F 2.60-3.29 A [116].
[Sn6F10][NbOF5]: =18.844(2), b=7.751(1), c=10.842(1), =90.02(1),
V=1583.5(4), z=4.
. (II) 52.8% .,
17.56% . , Sn:W =2:1.
Sn2WOF8 Sn(II) 40.28, F 25.79, Sn2WO2F6 Sn(II) 41.84
F 20.09. , -
Sn2ClF3 (Sn(II) . 71.95, F 17.27).
.
.
% ., - % .
C SnZrF6
ZrF4*3H2O ZrF4*3H2O SnZrF6 SnZrF6
- 6.6840 - -
6.5510 - - -
6.2470 - - -
- - 6.1365 -
- - 6.0189 5.9986(39.3)
- - 5.4216 5.4095(64.3)
- 5.038 - -
4.7902 - - -
- - 4.6171 4.6572(71.4)
4.4970 - - -
4.0664 - - -
- - 4.1850 4.1600(85.7)
3.9468 3.9400 - -
3.7560 - 3.7811 -
3.5815 3.5110 - -
3.4337 - 3.4216(100) 3.4186(47.8)
- 3.3694 3.3318 3.3225(42.8)
3.2980 3.2785 - -
3.2395 - - -
3.1010 - - 3.1116
3.0083 - 3.0243 3.0213(89.3)
2.9760 - - -
- 2.7724 - 2.7167
2.5870 2.5606 2.6462 -
2.5150 - 2.4587 -
2.3650 2.3856 - -
2.237 2.2424 2.2879 2.2832
2.1820 - 2.1692 2.1733
- - 2.1009 2.1087
2.0700 - 2.0704 2.0700
2.030 1.9506 - 2.0121
1.9240 1.9150 - -
1.8870 1.8597 1.7929 1.8095(100)
1.7150 1.7206 - 1.7107(42.8)
- - 1.6708 1.6675(52.1)
- - - 1.5820(27.1)
- - - 1.4233(25)
???
1
1. HBr, NaF, KOH, AlCl3?
.
, :Cr+6 ?Cr+3
) , )
K2Cr2O7+SO2+H2SO4?
K2CrO4+KNO2+KOH+H2O?
2
1. ,
( ).
.
) Fe2(SO4)3+SO2+HCl+H2O
) K2SO4+Cr2(SO4)3+H2O
2. , 18.8 K2O
5.6% KOH.
3
:
H2O2+K2Cr2O7+H2SO4?
KHSO4+KMnO4+H2O?
2. , , 7.69% Ag,
23.08% N, 46.15%H, 23.08% O ( ). ,
.
4
1. :
NaNO2+NaI+H2SO4?
NaNO2+KMnO4+H2SO4?
2. 25 8% AlCl3 25 8% NaOH.
.
.
5
1. ,
:
) I2+K2SO4+Cr2(SO4)3+H2O?
) Fe(NO3)3+NO+HCl+H2O?
2. 25 8% AlCl3 25 8% NaOH.
.
.
1. . . , . . //
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.., .., .., .., ..//
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