a) Draw a possible structural formula based on VSEPR theory

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Consider the compound Si2H6
a) Draw a possible structural formula
based on VSEPR theory
b) Use the isotope tables to discuss
(in detail) how 29Si NMR spectra can
help find the correct structure for
the compound.
Transcribed Image Text:Consider the compound Si2H6 a) Draw a possible structural formula based on VSEPR theory b) Use the isotope tables to discuss (in detail) how 29Si NMR spectra can help find the correct structure for the compound.
119Sn
82
Nuclear Magnet.
Table 4.1
NMR properties of some selected nuclei.
Magnetogyric
ratio/10
rad T's
Quadrupole
moment/10-28 m?
Isotope Spin
Natural
Relative
receptivity DC
(relative to 13C)
abundance
(%)
5.68 x 10
8.21 x 10-3
3.58
1.54 x 10
1/2
99.985
26.7510
2H
Li
"Li
"Be
1ºB
2.73 x 10-3
-8.0 x 10-4
-4.5 x 10-2
5.2 x 10-2
7.4 x 10-2
3.55 x 10-2
1
0.015
4.1064
1
7.42
3.9366
10.396
-3.7954
2.8748
3/2
92.58
100.0
19.58
80.42
3/2
78.8
22.1
7.54 x 10?
3/2
8.5827
13C
14N
15N
170
19F
27 AI
29 Si
31p
335
47 Ti
6.7263
1.9324
1/2
1.108
99.63
0.37
0.037
1
1.6 x 10-2
5.69
2.19 x 10-2
6.11 x 10-2
4.73 x 103
1.17 x 103
1/2
5/2
-2.7107
-3.6266
-2.6 x 10-2
3.0266
25.181
6.9706
100.0
100.0
4.70
100.0
1/2
5/2
0.149
-5.3141
10.829
2.0517
-0.9313
1/2
1/2
2.09
3.77 x 10?
9.73 x 10-2
3/2
5/2
0.76
-6.4 x 10-2
7.28
0.29
0.864
2.16 x 10
0.490
9.94 x 102
4.19 x 10-3
1.57 x 103
3.65 x 10?
0.665
3.19 x 102
99.76
9.55
100,0
2.19
7/2
3/2
7.032
-1.5120
0.3
0.03
53Cr
55 Mn
57 Fe
59 Co
63 Cu
67 Zn
7' Ga
73 Ge
75 As
17se
89 Y
95 Mo
5/2
6.598
0.55
0.8644
6.3171
1/2
7/2
100,0
0.40
7.0904
1.6726
8.1578
3/2
69.09
4.11
39.6
7.76
100.0
-0.16
0.15
0.112
5/2
3/2
-0.9332
4.5816
9/2
-0.2
0.3
0.617
1.43 x 10?
2.98
3/2
1/2
7,58
5.101
1/2
5/2.
100.0
-1.3106
0.668
2.88
15.72
1.743
0.12
1/2
100.0
-0.8420
0.177
12
51.82
-1.0828
O 197
10 Ag
1/2
48.18
-1.2449
0.276
1/2
1/2
1/2
-5.6720
-5.9330
12.75
6.97
113 Cd
12.26
7.59
117Sn
-9.5301
-9.9707
7.61
19.8
1/2
5/2
8,58
25.2
5.20 x 10?
5.30 x 10?
121 Sh
1271
123 Te
125 Te
129 Xe
131 Xe
169Tm
171 Yb
183 W
187 Os
195 Pt
197 Au
57.25
100.0
6.4016
0.4010
5.3521
-0.5
-0.69
5/2
-7.011
-8.453
-7.3995
2.1935
-2.21
1/2
0.87
0.903
1/2
6.99
12.5
26.44
21.18
318
221
3.31
1/2
3/2
-0.12
1/2
1/2
100.0
3.21
4.7117
1.1131
0.6161
5.7505
14.31
4.44
5.89 x 10-2
1.14 x 10-3
14.40
1/2
1.64
1/2
33.8
19.1
3/2
100.0
0.4625
0.59
2.6 x 10-5
199 Hg
205 TI
207 Pb
209 Bi
4.7690
15.438
1/2
16.84
5.42
7.69 x 10?
70.50
22.6
100.0
1/2
1/2
5.5968
11.8
9/2
4.2988
-0.4
7.77 x 102
Transcribed Image Text:119Sn 82 Nuclear Magnet. Table 4.1 NMR properties of some selected nuclei. Magnetogyric ratio/10 rad T's Quadrupole moment/10-28 m? Isotope Spin Natural Relative receptivity DC (relative to 13C) abundance (%) 5.68 x 10 8.21 x 10-3 3.58 1.54 x 10 1/2 99.985 26.7510 2H Li "Li "Be 1ºB 2.73 x 10-3 -8.0 x 10-4 -4.5 x 10-2 5.2 x 10-2 7.4 x 10-2 3.55 x 10-2 1 0.015 4.1064 1 7.42 3.9366 10.396 -3.7954 2.8748 3/2 92.58 100.0 19.58 80.42 3/2 78.8 22.1 7.54 x 10? 3/2 8.5827 13C 14N 15N 170 19F 27 AI 29 Si 31p 335 47 Ti 6.7263 1.9324 1/2 1.108 99.63 0.37 0.037 1 1.6 x 10-2 5.69 2.19 x 10-2 6.11 x 10-2 4.73 x 103 1.17 x 103 1/2 5/2 -2.7107 -3.6266 -2.6 x 10-2 3.0266 25.181 6.9706 100.0 100.0 4.70 100.0 1/2 5/2 0.149 -5.3141 10.829 2.0517 -0.9313 1/2 1/2 2.09 3.77 x 10? 9.73 x 10-2 3/2 5/2 0.76 -6.4 x 10-2 7.28 0.29 0.864 2.16 x 10 0.490 9.94 x 102 4.19 x 10-3 1.57 x 103 3.65 x 10? 0.665 3.19 x 102 99.76 9.55 100,0 2.19 7/2 3/2 7.032 -1.5120 0.3 0.03 53Cr 55 Mn 57 Fe 59 Co 63 Cu 67 Zn 7' Ga 73 Ge 75 As 17se 89 Y 95 Mo 5/2 6.598 0.55 0.8644 6.3171 1/2 7/2 100,0 0.40 7.0904 1.6726 8.1578 3/2 69.09 4.11 39.6 7.76 100.0 -0.16 0.15 0.112 5/2 3/2 -0.9332 4.5816 9/2 -0.2 0.3 0.617 1.43 x 10? 2.98 3/2 1/2 7,58 5.101 1/2 5/2. 100.0 -1.3106 0.668 2.88 15.72 1.743 0.12 1/2 100.0 -0.8420 0.177 12 51.82 -1.0828 O 197 10 Ag 1/2 48.18 -1.2449 0.276 1/2 1/2 1/2 -5.6720 -5.9330 12.75 6.97 113 Cd 12.26 7.59 117Sn -9.5301 -9.9707 7.61 19.8 1/2 5/2 8,58 25.2 5.20 x 10? 5.30 x 10? 121 Sh 1271 123 Te 125 Te 129 Xe 131 Xe 169Tm 171 Yb 183 W 187 Os 195 Pt 197 Au 57.25 100.0 6.4016 0.4010 5.3521 -0.5 -0.69 5/2 -7.011 -8.453 -7.3995 2.1935 -2.21 1/2 0.87 0.903 1/2 6.99 12.5 26.44 21.18 318 221 3.31 1/2 3/2 -0.12 1/2 1/2 100.0 3.21 4.7117 1.1131 0.6161 5.7505 14.31 4.44 5.89 x 10-2 1.14 x 10-3 14.40 1/2 1.64 1/2 33.8 19.1 3/2 100.0 0.4625 0.59 2.6 x 10-5 199 Hg 205 TI 207 Pb 209 Bi 4.7690 15.438 1/2 16.84 5.42 7.69 x 10? 70.50 22.6 100.0 1/2 1/2 5.5968 11.8 9/2 4.2988 -0.4 7.77 x 102
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