Fig. 1. Molecular structure of compound 5 (thermal ellipsoids are shown with 30% probability). Selected bond lengths (Å) and angles (deg): P1–C1 1.864(3), C1–C2 1.549(3), C2–C3 1.549(3), C3–B1 1.649(4), B1–C41–N1 175.8(3), C41–N1–C42 176.8(3).
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