Four 3D coordination polymers, [Co-7(OH)(4)(H2O)(2)(ina)(4)(ip)(3)]center dot 10H(2)O (1 center dot 10H(2)O, ina = iso-nicotinate, ip = isophthalate), [Ni-7(OH)(4)(H2O)(2)(ina)(4)(ip)(3)]center dot 10H(2)O (2 center dot 10H(2)O), [Co-2(OH)(4)(H2O)(2)(ina)(4)(pip)(3)]center dot 5H(2)O (3 center dot 5H(2)O, pip = 5-phenyl-isophthalate), and [Ni-7(OH)(4)(H2O)(2)(ina)(4)(pip)(3)]center dot 5H(2)O (4 center dot 5H(2)O), respectively, were hydrothermally synthesized. They crystallized in the orthorhombic space group Pba2 for 1 center dot 10H(2)O and 2 center dot 10H(2)O and monoclinic space group P2/n for 3 center dot 5H(2)O and 4 center dot 5H(2)O, respectively, and were constructed with the identical 8-connected heptanuclear {M-7(OH)(4)} (M = Co-II or Ni-II) clusters, possessing uninodal hexagonal primitive net with the point symbol {3(6).4(18).5(3).6}. The four coordination polymers showed dominant antiferromangetic properties, in which 1 center dot 10H(2)O shows spin-canted behavior and 2.10H(2)O exhibits the coexistence of spin canting and spin glass. Meanwhile, the activated polymers 1 and 2 possessed permanent porosity, displaying relatively large H-2 uptake capacity (77 K, I atm) of 114 and 133 cm(3) g(-1), and CO2 uptake capacity (273 K, 1 atrri) of 65.8 and 73.3 cm(3) g(-1), for 1 and 2, respectively.