D8 quest system

The
crystal samples were assembled on the glass fiber through the oil
drop method. The graphite-monochromatic Cu Kα radiation (λ
= 0.71073 Å) was used for measurements. Crystallographic data
were collected on a Bruker D8 QUEST system. The spherical harmonics
program (multi-scan type) was used for the absorption corrections.
The direct method (SHELXS 97) or intrinsic phasing method (ShelXT)
was used for structural analysis.^{33 (link)} All
nonhydrogen atoms were anisotropically refined through the least square
method on F². Selected bond lengths (Å) and angles
(°) are listed in Table S1.

The intensity data were recorded on a Bruker D8 QUEST system with Cu-Kα radiation (λ = 1.54178 Å). The crystal structures were solved by means of Direct Methods and refined employing full-matrix least squares on F² (SHELXTL-97). The diffraction data were treated by the “SQUEEZE” method as implemented in PLATON.^{17 (link)} All non-hydrogen atoms were refined anisotropically, and hydrogen atoms of the organic ligands were generated theoretically onto the specific atoms and refined isotropically with fixed thermal factors. The unidentified solvent molecules and counter ions were not included for all the structures. CCDC 1864223–1864225 contain the supplementary crystallographic data for this paper.