Axs smart apex 2

Single crystal X-ray diffraction measurements were collected on a Bruker AXS SMART APEX II (Bruker, Karlsruhe, Germany) diffractometer for compound 1 with graphite monochromated Mo-Kα (λ = 0.71073 Å) radiation at 293 K. Data processing was performed using the SAINT processing program. The structure was solved through direct methods and refined on F² by means of the full-matrix least-squares method with the SHELX-97 program. All the non-hydrogen atoms were refined with anisotropic thermal parameters. A summary of the detailed crystallographic data and structure refinement parameters for 1 (CCDC No. 2106882) are given in Tables S1–S3 in the SI.

Single crystals of 1 and 2 that were suitable for structural determination were obtained from hydrothermal and solvothermal reactions, respectively, and their diffraction data were collected on a Bruker AXS SMART APEX II diffractometer, using graphite-monochromated MoK_α radiation with λ_α = 0.71073 Å. The reflections of 1 and 2 that were collected were reduced and corrected by using Lorentz-polarization [24 ], and their structures were solved by using the direct method in the SHELXTL-97 program [25 (link)], both of which are well-established computational procedures. The solutions first afforded the positions of some of the heavier atoms, including the cobalt atom. The remaining atoms were found in a series of difference Fourier maps and least-square refinements, while the hydrogen atoms were added by using the HADD command. The methanol carbon atom is disordered such that two orientations can be found. Table 1 lists the crystal parameters and structural refinement results.

The diffraction data for complexes of 1–3 were collected on a Bruker AXS SMART APEX II diffractometer at 296 K, which was equipped with a graphite-monochromated MoKα (Kα = 0.71073 Å) radiation. Data collection and reduction were performed by standard methods with use of well-established computational procedures [32 ,33 ]. Positions of some of the heavier atoms were located by the direct or Patterson method and the remaining atoms were found in a series of alternating difference Fourier maps and least-square refinements [34 ]. Basic information pertaining to crystal parameters and structure refinement is summarized in Table 1. Selected bond distances and angles are listed in Table S1.