Resilience of SAR11 bacteria to rapid acidification in the high-latitude open ocean.

Ubiquitous SAR11 Alphaproteobacteria numerically dominate marine planktonic communities. Because they are excruciatingly difficult to cultivate, there is comparatively little known about their physiology and metabolic responses to long- and short-term environmental changes. As surface oceans take up anthropogenic, atmospheric CO2, the consequential process of ocean acidification could affect the global biogeochemical significance of SAR11.

The ligand, the metal and the 'Holey'-host: Synthesis, structural and magnetic characterisation of Co(II), Ni(II) and Mn(II) metal-organic frameworks incorporating 4,4'-dicarboxy-2,2'-bipyridine.

We report herein the single crystal structures of four metal-organic framework complexes incorporating the 4,4'-dicarboxy-2,2'-bipyridine ligand, H(2)dcbp: alpha-[Co(dcbp)(H(2)O)(2)], 1; beta-[Co(dcbp)(H(2)O)(2)], 2, [Ni(dcbp)(H(2)O)(2)], and [[Mn(dcbp)].1/2DEF], 4 (DEF = diethylformamide). In each complex the ligand is deprotonated giving neutral species with 1:1 stoichiometry that form three-dimensional coordination polymers.

Solvent templated synthesis of metal-organic frameworks: structural characterisation and properties of the 3D network isomers [[Mn(dcbp)].1/2DMF]n and [[Mn(dcbp)][middle dot]2H2O](n).

The identity of the metal-organic framework formed by Mn(ii) and 4,4[prime or minute]-dicarboxy-2,2[prime or minute]-bipyridine (H(2)dcbp) depends upon the predominant solvent employed in the synthesis and yields the robust network isomers [[Mn(dcbp)][middle dot]1/2DMF](n), and [[Mn(dcbp)][middle dot]2H(2)O](n), which possess vastly different physical properties: irretrievably binds DMF, whereas reversibly binds water whilst retaining crystallinity.