Table 1.

Selected X-ray bond lengths [Å] and angles [°] for 2e and 2f.

	2e (structure A)	2e (structure B)	2f
Re–C1	1.906 (5)	1.919 (5)	1.919 (5)
Re–C2	1.936 (5)	1.952 (5)	1.935 (5)
Re–C3	1.890 (5)	1.933 (5)	1.898 (5)
Re–N1	2.160 (5)	2.177 (5)	2.164 (5)
Re–N2	2.220 (5)	2.233 (5)	2.214 (5)
N2–C13–C14–C15	132.85 (5)	125.66 (4)	125.47 (4)
C2O2–ph	3.110 (5)	3.239 (3)	3.233 (5)
Re1–N2–C11	165.28 (6)	162.38 (6)	159.09 (6)