Novel Extended Linear Structure of Decavanadate Anions Linked by Bis(4-Pyridinium) Disulfide (H2dpds), {(H2dpds)2[V10O26(OH)2]·10H2O}n

New porous coordination polymer, {(H2dpds)2[V10O26(OH)2]·10H2O}n (H2dpds = bis(4-pyridinium) disulfide), was synthesized and structurally characterized. X-ray analysis demonstrates that the decavanadate anions are doubly bridged by H2dpds ligands to provide a one-dimensional structure. This network affords channeling cavities with dimension of about 2 × 4 Å along the c-axis.