A novel two-dimensional (4,4) network based on dinuclear cadmium secondary building units: poly[(μ5-benzene-1,4-diacetato)[μ2-1,4-bis(1,2,4-triazol-1-yl)butane]cadmium(II)]

2011 ◽  
Vol 67 (5) ◽  
pp. m137-m139 ◽  
Author(s):  
Jun Wang ◽  
Xiao-Juan Xu ◽  
Jian-Qing Tao
Keyword(s):  
Two Dimensional ◽  
Secondary Building Units

scholarly journals Two-dimensional metal-organic frameworks containing linear dicarboxylates

2006 ◽  
Vol 62 (5) ◽  
pp. 808-814 ◽  
Author(s):  
Samuel M. Hawxwell ◽  
Harry Adams ◽  
Lee Brammer
Keyword(s):  
Dicarboxylic Acid ◽  
Solvothermal Synthesis ◽  
Interplanar Spacing ◽  
Metal Organic Frameworks ◽  
Dicarboxylic Acids ◽  
Two Dimensional ◽  
Secondary Building Units ◽  
Metal Organic ◽  
Gas Molecules ◽  
Solvent Molecules

The solvothermal synthesis of four two-dimensional metal-organic frameworks containing linear dicarboxylic acids as ligands for ZnII centres is described. Zn(BDC)(DMF) [(1) where BDC = benzene-1,4-dicarboxylic acid; DMF = N,N-dimethylformamide] adopts a common paddlewheel motif leading to a 44 grid network, whereas Zn3(BDC)3(EtOH)2 (2), Zn3(BDC)3(H2O)2·4DMF (3) and Zn3(BPDC)3(DMF)2·4DMF (4) each form networks with the relatively uncommon 36 topology based upon Zn3(O2CR)6 secondary building units. All contain coordinated solvent molecules, namely DMF [(1) and (4)], ethanol (2) or H2O (3). Comparison of structures (2) and (3) illustrates a clay-like flexibility in interplanar spacing which sheds light on the ability of the Zn3(BDC)3 framework to undergo desolvation and uptake of small solvent and gas molecules.

Melaminium (2-carboxyethyl)(phenyl)phosphinate monohydrate

2012 ◽  
Vol 68 (9) ◽  
pp. o355-o358 ◽  
Author(s):  
Jun Xue ◽  
Cui-Cui Zhao ◽  
Zi-Yi Du
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Electrostatic Interactions ◽  
Large Scale ◽  
Phosphinic Acid ◽  
Thick Layer ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Compound C ◽  
Secondary Building Units

Cocrystallization of melamine (1,3,5-triazine-2,4,6-triamine, ma) with (2-carboxyethyl)(phenyl)phosphinic acid (H2L) from water affords the title compound, C3H7N6+·C9H10O4P−·H2O or (maH)(HL)·H2O, (I). The phosphinic acid H atom of each H2Lmolecule is transferred to a melamine molecule. Structural analysis reveals that there are two types of secondary building units in the crystal structure, namely cationic [(maH+)2]∞ribbons and anionic {[(HL)2(H2O)2]2−}∞layers, the combination of which through hydrogen-bond and electrostatic interactions, generates a large-scale two-dimensional layered structure. The thick layer is sandwich-like, with the central [(maH+)2]∞ribbons being further stabilized by π–π stacking interactions. It is also worthy of note that two conformational isomericR65(24) hydrogen-bond ring motifs can be identified in the {[(HL)2(H2O)2]2−}∞layer.

A two-dimensional copper polymer constructed from rod-shaped ferromagnetic secondary building units

2009 ◽  
Vol 12 (3) ◽  
pp. 201-203 ◽  
Author(s):  
Zhao-Xi Wang ◽  
Ming-Xing Li ◽  
Min Shao ◽  
Hong-Ping Xiao
Keyword(s):  
Two Dimensional ◽  
Secondary Building Units ◽  
Copper Polymer

Biphase synthesis of a one-dimensional coordination polymer based on a dinuclear CdIIsecondary building unit and a novel semi-rigid dicarboxylate

2012 ◽  
Vol 68 (12) ◽  
pp. m333-m335
Author(s):  
Xiaolai Zhang ◽  
Weiyong Ying
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Single Phase ◽  
Solvothermal Method ◽  
Solvothermal Reaction ◽  
Two Dimensional ◽  
One Dimensional ◽  
Secondary Building Units ◽  
The One ◽  
Solvothermal Conditions

A one-dimensional coordination polymer, namelycatena-poly[[aquapyridinecadmium(II)]-μ3-{4,4′-[(2,4,6-trimethyl-1,3-phenylene)bis(methylene)]dibenzoato}], [Cd(C25H22O4)(C5H5N)(H2O)]n, has been synthesized by a biphasic solvothermal reaction. The CdIIcation is located in a CdO5N six-coordinated environment. Thetrans4,4′-[(2,4,6-trimethyl-1,3-phenylene)bis(methylene)]dibenzoate ligand connects the CdIIcations to form a one-dimensional ribbon incorporating centrosymmetric [Cd2(COO)2] secondary building units. Inter-ribbon O—H...O hydrogen bonds extend the one-dimensional ribbons into a two-dimensional sheet. No π–π interactions are observed. Comparing products synthesized using a different method, it was found that biphasic solvothermal conditions play a crucial role in obtaining large well-shaped single crystals; only intractable precipitates were obtained by the traditional single-phase solvothermal method.

scholarly journals Crystal structure of the two-dimensional coordination polymer poly[di-μ-bromido-bis(μ-tetrahydrothiophene)dicopper(I)]

2021 ◽  
Vol 77 (7) ◽  
pp. 744-748
Author(s):  
Michael Knorr ◽  
Lydie Viau ◽  
Yoann Rousselin ◽  
Marek M. Kubicki
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Two Dimensional ◽  
Different Types ◽  
Secondary Building Units ◽  
Mecn Solution ◽  
Bonding Mode

The polymeric title compound, [Cu2Br2(C4H8S)2] n , CP1, represents an example of a two-dimensional coordination polymer resulting from reaction of CuBr with tetrahydrothiophene (THT) in MeCN solution. The two-dimensional layers consist of two different types of rhomboid-shaped dinuclear Cu(μ2-Br)2Cu secondary building units (SBUs); one with a quite loose Cu...Cu separation of 3.3348 (10) Å and a second one with a much closer intermetallic contact of 2.9044 (9) Å. These SBUs are interconnected through bridging THT ligands, in which the S atom acts as a four-electron donor bridging each Cu(μ2-Br)2Cu unit in a μ2-bonding mode. In the crystal, the layers are linked by very weak C—H...·Br hydrogen bonds with H...Br distances of 2.95 Å, thus giving rise to a three-dimensional supramolecular network.

Sign in / Sign up

Export Citation Format

Share Document