Structural changes in coordination polymers in response to small changes in steric bulk (H vs. Me): an experimental and theoretical study

Abstract

Small changes in the steric bulk in bis(amino acid) naphthalene diimides are shown to have a very significant impact on the structural motifs that are observed in coordination polymers containing the dicarboxylate ligands.

Preliminary chemical reduction for synthesizing a stable porous molecular conductor with neutral metal nodes

“…S4, ESI †) indicate that there is significant orbital overlap between the NDI-py molecules. Such an infinite p-stacked array of NDI cores in coordination polymers is still rare, 1,17,[32][33][34][35][36][37][38] even though vast numbers of coordination polymers with NDIbased ligands have been reported. 39,40 The LUMO level of NDI-py in PMC-2 was calculated to be À4.17 eV from the first reduction potential in the solid-state cyclic voltammogram (Fig.…”

Towards a Generalized Synthetic Strategy for Variable Sized Enantiopure M4L4 Helicates

“…Using a more rigid naphthalenediimide-based ligand we, and others, isolated Cu 12 L 12 octahedra [43,44] and, by using a more rotationally unrestricted biphenyl core, we obtained Cu 8 L 8 "double-walled" squares [45]. It is also possible to isolate discrete catenanes using similar ligands [46], which are analogous to motifs observed in extended networks [47][48][49][50].…”

Chiral metal–organic frameworks for photonics

“…Hence, naturally occurring chiral molecules, such as amino acids, have frequently been used as ligands or as building blocks in the synthesis of larger ligands. [18][19][20] Derivatives of the axially chiral 1,1 0 -binaphthalene-2,2 0 -diol (BINOL) have also been used. 21 In some cases, achiral components spontaneously crystallise in a chiral space group through the formation of chiral structures such as helices.…”

“…Hence, naturally occurring chiral molecules, such as amino acids, have frequently been used as ligands or as building blocks in the synthesis of larger ligands. 18–20 Derivatives of the axially chiral 1,1′-binaphthalene-2,2′-diol (BINOL) have also been used. 21…”