Abstract
The complete molecule of title compound, C58H58P4, is generated by a crystallographic twofold rotation axis that passes through the center of the C(methine)—C(methine) bond of length 1.582 (4) Å. The C—P bond lengths are 1.8824 (19) and 1.8991 (19) Å. The P—C—P angle of 109.69 (9)° is essentially equal to the expected value of 109.5° for a tetrahedral C atom. Although the C(methine)—P—C(aromatic) bond angles range from 102.67 (9) to 107.04 (9)°, the C(aromatic)—P—C(aromatic) bond angles of 96.72 (9) and 97.29 (9)° are significantly smaller. The steric demands of the o-tolyl groups cause deviations from the bond lengths and angles reported for its phenyl analog.
Highlights
284 parameters H-atom parameters not refined Ámax = 0.35 e A À3 Ámin = À0.19 e A À3
The complete molecule of title compound, C58H58P4, is generated by a crystallographic twofold rotation axis that passes through the center of the C(methine)—C(methine) bond of length 1.582 (4) A
The steric demands of the o-tolyl groups cause deviations from the bond lengths and angles reported for its phenyl analog
Summary
Absorption correction: multi-scan (SADABS; Bruker, 2005) Tmin = 0.942, Tmax = 0.976. V = 4727.6 (4) A 3 Z=4 Mo K radiation = 0.20 mmÀ1 T = 193 K 0.42 Â 0.40 Â 0.24 mm 19717 measured reflections 4345 independent reflections 3343 reflections with I > 2(I) Rint = 0.049. 284 parameters H-atom parameters not refined Ámax = 0.35 e A À3 Ámin = À0.19 e A À3. The complete molecule of title compound, C58H58P4, is generated by a crystallographic twofold rotation axis that passes through the center of the C(methine)—C(methine) bond of length 1.582 (4) A. The C—P bond lengths are 1.8824 (19) and 1.8991 (19) A. The P—C—P angle of 109.69 (9) is essentially equal to the expected value of 109.5 for a tetrahedral C atom. The steric demands of the o-tolyl groups cause deviations from the bond lengths and angles reported for its phenyl analog
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