Variable Water Adsorption in Amino Acid Derivative Based Homochiral Metal Organic Frameworks Tanay Kundu Subash Chandra Sahoo Rahul Banerjee 10.1021/cg3008443.s001 https://acs.figshare.com/articles/journal_contribution/Variable_Water_Adsorption_in_Amino_Acid_Derivative_Based_Homochiral_Metal_Organic_Frameworks/2490667 Six new Cd-containing homochiral metal–organic framework materials [{Cd­(L1)­(Cl)}­(H<sub>2</sub>O)]<sub>∞</sub> (<b>1a</b>), [Cd­(L1)­(Br)]<sub>∞</sub> (<b>1b</b>), [Cd­(L2)­(Cl)]­(H<sub>2</sub>O)]<sub>∞</sub> (<b>2a</b>), [{Cd<sub>2</sub>(L2)<sub>2</sub>(Br)<sub>2</sub>}­(H<sub>2</sub>O)<sub>3</sub>]<sub>∞</sub> (<b>2b</b>) [{Cd­(L3)­(Cl)}­(H<sub>2</sub>O)<sub>2</sub>]<sub>∞</sub> (<b>3a</b>), and [{Cd­(L3)­(Br)}­(H<sub>2</sub>O)<sub>2</sub>]<sub>∞</sub> (<b>3b</b>) [L1 = 2-((pyridin-4-yl)­methylamino)-4-methylpentanoic acid], [L2 = 2-(pyridin-4-yl)­methylamino)-3-hydroxypropanoic acid], and [L3 = 2-((pyridin-4-yl)­methylamino)-3-hydroxybutanoic acid] have been synthesized using pyridine functionalized amino acid (l-leucine, l-serine, and l-threonine) homochiral links and Cd­(CH<sub>3</sub>COO)<sub>2</sub>·2H<sub>2</sub>O and characterized via single crystal X-ray diffraction (XRD), powder X-ray diffraction (PXRD), variable temperature powder X-ray diffraction (VTPXRD), thermogravimetric analysis and water adsorption experiments. Side chains in different amino acid derivatives and anions (Cl<sup>–</sup>, Br<sup>–</sup>) have been identified to play an important role in structural diversity (from porous to nonporous) as well as physical properties. These metal–organic frameworks (MOFs) exhibit a distinct water adsorption nature and capacity, e.g., high adsorption at low partial pressure based on architectural diversities. 2012-09-05 00:00:00 Homochiral Metal Organic FrameworksSix acid derivatives homochiral links L 3 water adsorption nature pyridine functionalized Variable Water Adsorption XRD L 2 L 1 MOF PXRD VTPXRD water adsorption experiments side chains diffraction