Abstract
Three new heterometallic coordination polymers formulated as {[Ca(CuL)(H2O)5]·H2O}n (1), [Sr(CuL)(H2O)2]n (2), and [Ba(CuL)(H2O)4]n (3) have been obtained by reaction of a rigid metalloligand [CuL]2− (H4L = N-5-sulfosalicylideneglycylglycine) with the corresponding alkaline earth metal cations M2+ (M = Ca, Sr or Ba). Their crystal structures are determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses and IR spectra. The coordination preferences of the alkaline earth metal cations are found to have pronounced effects on the structural topologies. Complex 1 has a distorted ladder-like one-dimensional (1D) structure. In complex 2, Sr(II) ions link metalloligands [CuL]2−via the sulfonate and carbonyl oxygen atoms to generate a three-dimensional (3D) framework. Complex 3 is arranged in a 3D framework formed by the linkage of copper(II) and barium(II) via carboxylate and sulfonate bridges. Variable-temperature magnetic susceptibility studies indicate that all the complexes exhibit weak antiferromagnetic interactions between the Cu(II) paramagnetic centers.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
