Hydrothermal Syntheses and Characterization of Two Novel Lead(II)-IDA Coordination Polymers: From 2D Homochiral Parallel Interpenetration to 12-Connected Lead(II) Hybrid Framework Based on Propeller-Like Spiral Pb₄O₆ Cores (H₂IDA = iminodiacetic acid)

Abstract

Supporting informationFigure S1 Four and five-coordinate lead(II) centers in the hemi-directed geometries in 1 while in 2 sixcoordinate Pb1 is in the in the hemi-directed geometries while eight-coordinate Pb2 is in the holo-directed geometries.

Stereochemically Active and Inactive Lone Pairs in Two Room-Temperature Phosphorescence Coordination Polymers of Pb2+ with Different Tricarboxylic Acids

“…Moreover, there are clearly gaps in the Pb 2+ coordination spheres (Figure c), suggesting that the Pb 2+ ion contains a stereochemically active lone electron pair in 2 . Interestingly, the electron configuration of Pb 2+ ion is [Xe]­4f 14 5d 10 6s 2 , and the lone electron pair of 6s 2 is either stereochemically active or inactive in Pb 2+ complexes, where the terms hemi- and holo-directed were coined, respectively. − The 6s 2 lone pair of electrons is either stereochemically active or inactive in a Pb 2+ coordination sphere depending strongly on the nature of ligands. The formation of hemidirected coordination sphere of Pb 2+ in 2 is relevant to the strong chelating ability of HPTC 2– using a tridentate (O1, N1, O6; see Figure b).…”

Bismuth Carboxylates with Brucite- and Fluorite-Related Structures: Synthesis Structure and Properties

“…The one-dimensional chain units resemble a ladder, commonly observed in many open-framework phosphate structures . Weak secondary interactions of this nature have been observed in many inorganic coordination polymers . Careful observation of the structure of I reveals that the structure may be closely related to the structure of [Bi­(C 7 H 4 NO 4 )­(C 7 H 3 NO 4 )­H 2 O] 2 ·5H 2 O .…”

A new heterometallic multiligand 3D coordination polymer: synthesis and structure of [Pb(OH)]n[Ag(SCN)(CN)]n

“…The intrinsic features of Pb(II) inspired chemist's extensive interest in coordination chemistry, photophysics and photochemistry. 35,36 The presence of the inert pair of 6s electrons leads to interesting topological arrangements, and plays an important role in the luminescent behaviour of the complexes. An important characteristic of Pb(II) exploited in the present research, is its ability to form complex architectures from species obtained from hydrolysis products.…”