Structure Data of Free Polyatomic Molecules
912
ED
C12H28P4
ra
P–P
P–C
C–C
C–H
Tetrakis(1-methylethyl)tetraphosphetane
Tetraisopropyltetraphosphetane
a
Å )
2.222(2)
1.869(5)
1.533(4)
1.090(4)
θa
P(1)–P(2)–P(3)
P(1)–C(1)–C(11)
P(2)–P(1)–C(1)
C(11)–C(1)–C(12)
C(1)–C(11)–H
P(1)–P(2)–P(3)–P(4)
P(4)–P(1)–P(2)–C(1')
P(1)–P(2)–C(1')–C(22)
P(1)–P(2)–C(1')–C(21)
C(11)–C(1)–C(12)–H
a
deg )
87.8(2)
111.0(3)
101.2(3)
111.4(8)
112 b)
–22.3(8)
123.3(10)
72.8(7)
162.7(6)
104(8)
S4 assumed
CH3 H3C
H3C
H3C
P
P
P
P
CH3 H3C
Local C3v symmetry was assumed for the CCH3 groups.
The nozzle temperature was 100...103 °C.
a
) Twice the estimated standard errors
including a systematic error.
b
) Assumed.
Steinicke, A., Thiele, K.-H., Haaland, A., Sokolov, V.I., Volden, H.V.: Z. Anorg. Allg.
Chem. 623 (1997) 1925.
Landolt-Börnstein
New Series II/28D
CH3
CH3