Manganese and cobalt para-benzenedicarboxylate coordination polymers with 3-pyridylisonicotinamide coligands: Different layer topologies and a self-penetrated supramolecular network

• Published in: Inorganica Chimica Acta Vol. 419; pp. 26 - 35
• Main Authors: Goldsworthy, Jessica S., Pochodylo, Amy L., LaDuca, Robert L.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2014
• Subjects: Cobalt; Coordination polymer; Crystal structure; Manganese; Self-penetration; Self-penetration; Coordination polymer; Cobalt; Manganese; Crystal structure
• ISSN: 0020-1693; 1873-3255
• DOI: 10.1016/j.ica.2014.04.035

A series of divalent manganese and cobalt 1,4-benzenedicarboxylate (bdc) or 1,4-phenylenediacetate (phda) coordination polymers was prepared utilizing 3-pyridylisonicotinamide (3-pina). {[Co2(phda)1.5(phdaH)(3-pina)2(H2O)2]}·0.25H2O}n (4) shows a 4,4-connected binodal (66)(658) topology self-penetrated supramolecular net. [Display omitted] •Manganese cobalt coordination polymers with 3-pyridylisonicotinamide.•para-benzenedicarboxylate (bdc) or 1,4-phenylenediacetate (phda) ligands.•2-D (4,4) grid topologies with bdc in both Mn or Co cases.•2-D (6,3) chair-ring layer topology or 3-D self-penetrated net with phda. A series of divalent manganese and cobalt para-benzenedicarboxylate coordination polymers was hydrothermally prepared utilizing the neutral 3-pyridylisonicotinamide (3-pina) tethering coligand. Single crystal X-ray diffraction revealed that [M(bdc)(3-pina)2]n (1, M=Mn; 2, M=Co, bdc=1,4-benzenedicarboxylate) coordination polymer solids display isostructural (4,4) grid topologies constructed from pairs of kinked 3-pina tethers linking [M(bdc)]n chain motifs. Utilizing the longer-spanning 1,4-phenylenediacetate (phda) dicarboxylate ligand afforded {[Mn(phda)(3-pina)(H2O)]·3H2O}n (3) and {[Co2(phda)1.5(phdaH)(3-pina)2(H2O)2]}·0.25H2O}n (4). The manganese derivative 3 displays a non-interpenetrated 3-connected (6,3) chair-ring layer topology based on a staple-like phda conformation. While the cobalt analog 4 possesses similar layers, these alternate with threefold interpenetrated (6,3) herringbone layers and connect into a simple yet unprecedented 4,4-connected binodal {(66)(658)} topology self-penetrated supramolecular net by means of pendant protonated phdaH ligands. Thermal decomposition properties were also investigated.