A 3D Aluminoborate Open Framework Interpenetrated by 2D Zinc–Amine Coordination‐Polymer Networks in Its 11‐Ring Channels

Abstract

A new inorganic-organic hybrid solid, [Zn(dap)2 ][AlB5 O10 ], combining the structural features of 3D open-framework inorganic solids and 2D metal-organic coordination polymers has been synthesized under solvothermal conditions. The compound displays extensive luminescence and moderate second-harmonic-generation efficiency.

Designable Aluminum Molecular Rings: Ring Expansion and Ligand Functionalization

“…To create crystalline Al III -based materials,the controllable hydrolysis of Al III sources into measurable crystals is ab ig challenge.C ompared to the 150-year-old chemistry of hydrolysis of inorganic Al III salts, [7][8][9][10][11][12] the hydrolysis of organoaluminium compounds is relatively new. [13][14][15][16][17][18][19] More importantly,o rganoaluminium with highly tailorable shape,c omposition, and surface properties represents an excellent platform for significant atomistic understanding.H owever, the fast hydrolysis of aluminum salts/alkoxides usually results in the formation of ametal oxide/hydroxide.Inthis regard, it is important to slow down its hydrolysis process to promote crystallization and simultaneously enable condensation occurs.R ecently,w eh ave applied organic ligands to delay the hydrolysis process of Ti IV ions through coordination interactions (denoted as coordination delayed hydrolysis (CDH)). [20][21][22][23][24] Therefore,w eb elieve the strategy can be used to understand the hydrolysis and condensation of Al III precursors,w hich remained relatively unexplored before.…”

Structural Insights into Borates with an Anion‐Templated Open‐Framework Configuration: Asymmetric K2BaB16O26 versus Centrosymmetric K3CsB20O32 and Na2M2NB18O30 (M=Rb, Cs; N=Ba, Pb)

“…Specifically, when the B−O units are in a coplanar configuration with the same spatial orientation, such as the [BO 3 ] 3− triangles and hexagonal [B 3 O 6 ] 3− units in KBe 2 BO 3 F 2 (KBBF) and BaB 2 O 4 (BBO), respectively, it is beneficial to generate large second‐order susceptibility and birefringence due to the strong optical anisotropy of the π‐conjugated orbitals . Besides, the combination of the B−O groups with transition metals can lead to open‐framework configurations that feature large surface areas and can be regarded as potential candidates for catalysis, gas storage, and ion‐exchange applications …”

A Series of Aluminoborates Templated or Supported by Zinc–Amine Complexes

“…In some cases, MCs can act as linkers to connect other structure‐building units to form open frameworks 18. Recently, we reported a new inorganic–organic hybrid solid, [Zn(dap) 2 ][AlB 5 O 10 ] (dap=1,3‐diaminopropane),15a which contains two independent frameworks: a metal–organic coordination network and an inorganic ABO framework. To further investigate the influence of Zn–amine complexes on the structures of ABOs, we carried out the synthesis using Al( i PrO) 3 /H 3 BO 3 or K 2 B 4 O 7 ⋅4 H 2 O/Zn(OH) 2 /ethylenediamine mixtures under solvothermal conditions, and obtained five new ABOs: [Zn 2 (en) 5 ][Al 2 B 10 O 20 ] ( 1 ), [Zn(en)(dien)][AlB 5 O 10 ] ( 2 ), [Zn(en) 3 ][AlB 7 O 12 (OH) 2 ] ( 3 ), [Zn(en) 2 ][AlB 5 O 10 ] ( 4 ), and K 7 {AlO 0.5 [BO 2 (OH)]Zn@[B 12 O 21 (OH) 3 ]}⋅H 2 O ( 5 ) (en=ethylenediamine, dien=diethylenetriamine).…”