A New Class of Eight-Membered Sn<sub>2</sub>P<sub>2</sub>O<sub>4</sub> Heterocycles.
Crystal Structure and Electrolytic Dissociation in
Solution of <i>c</i><i>yclo</i>-[R<sub>2</sub>Sn(OPPh<sub>2</sub>O)<sub>2</sub>SnR<sub>2</sub>](O<sub>3</sub>SCF<sub>3</sub>)<sub>2</sub>
(R = Me, <i>t</i>-Bu)
Jens Beckmann
Dainis Dakternieks
Andrew Duthie
Cassandra Mitchell
10.1021/om021042u.s001
https://acs.figshare.com/articles/dataset/A_New_Class_of_Eight-Membered_Sn_sub_2_sub_P_sub_2_sub_O_sub_4_sub_Heterocycles_Crystal_Structure_and_Electrolytic_Dissociation_in_Solution_of_i_c_i_i_yclo_i_-_R_sub_2_sub_Sn_OPPh_sub_2_sub_O_sub_2_sub_SnR_sub_2_sub_O_sub_3_sub_SCF_sub_3_sub_sub_2_sub_R_M/3775107
The syntheses of <i>cyclo</i>-[R<sub>2</sub>Sn(OPPh<sub>2</sub>O)<sub>2</sub>SnR<sub>2</sub>](O<sub>3</sub>SCF<sub>3</sub>)<sub>2</sub> (R = Me (<b>1</b>), <i>t</i>-Bu (<b>2</b>)) by the consecutive
reaction of R<sub>2</sub>SnO (R = Me, <i>t</i>-Bu) with triflic acid and
diphenylphosphinic acid are presented. In the solid state,
<b>1</b> and <b>2</b> were investigated by <sup>119</sup>Sn MAS and <sup>31</sup>P MAS
NMR spectroscopy as well as X-ray crystallography and
appear to exist as ion pairs of <i>cyclo</i>-[R<sub>2</sub>Sn(OPPh<sub>2</sub>O)<sub>2</sub>SnR<sub>2</sub>]<sup>2+</sup> dications and triflate anions. In solution, <b>1</b> and
<b>2</b> are involved in extensive equilibria processes featuring
cationic diorganotin(IV) species with Sn−O−P linkages,
as evidenced by <sup>119</sup>Sn and <sup>31</sup>P NMR spectroscopy,
electrospray mass spectrometry, and conductivity measurements.
2003-04-17 00:00:00
31 P MAS NMR spectroscopy
electrospray mass spectrometry
diphenylphosphinic acid
Bu
crystal Structure
conductivity measurements
SCF
equilibria processes
New Class
31 P NMR spectroscopy
119 Sn
triflic acid
Electrolytic Dissociation
ion pairs
2 SnR 2
triflate anions
R 2 SnO
119 Sn MAS