1620102-39-7

Basic information

• Product Name: [Pb(2-amino-4-sulfobenzoate)(H₂O)]n
• CAS NO: 1620102-39-7
• Molecular Weight: 440.402
• Mol File: 1620102-39-7.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [Pb(2-amino-4-sulfobenzoate)(H₂O)]n(CAS DataBase Reference)
• NIST Chemistry Reference: [Pb(2-amino-4-sulfobenzoate)(H₂O)]n(1620102-39-7)
• EPA Substance Registry System: [Pb(2-amino-4-sulfobenzoate)(H₂O)]n(1620102-39-7)

Safety Data

• Hazardous Substances Data: 1620102-39-7(Hazardous Substances Data)

Upstream product

• 98-43-1 4-sulfoanthranilic acid 
• 7732-18-5 water 

Relevant articles and documents

Synthesis, characterization and properties of a family of lead(ii)-organic frameworks based on a multi-functional ligand 2-amino-4-sulfobenzoic acid exhibiting auxiliary ligand-dependent dehydration-rehydration behaviours

A systematic investigation is reported of the use of the multi-functional ligand 2-amino-4-sulfobenzoate (asba2-) to construct lead(ii)-organic frameworks in the presence and absence of N-donor auxiliary ligands phen, bipy and bix [phen = 1,10-phenanthroline, bipy = 2,2′-bipyridine and bix = 1,4-(methylene-benzene)bisimidazole]. Under ambient, aqueous conditions the assembly of asba2- with Pb(ii) and phen or bipy leads to two iso-structural 2D double-layer frameworks, {[Pb2(asba) 2(phen)2(H2O)]·2H2O} n (1) and {[Pb2(asba)2(bipy)2(H 2O)]·2H2O}n (2). [Pb2(asba) 2(bix)2(H2O)2]n (3) is obtained in the presence of the auxiliary ligand bix and possesses a 3D network built up from 2D Pb(ii)-asba2--bridged double-layer pillared by bix. A 2D (4,4) topological network [Pb(asba)(H2O)]n (4) is obtained in the absence of any second ligand or presence of some bistriazole bridging spacers. The coordination modes of the ligand asba2- in 1-4 are greatly dependent on the type of auxiliary ligand and the compounds exhibit auxiliary ligand-dependent dehydration-rehydration behaviours; 1 shows in situ rapid and reversible dehydration-rehydration behaviour in air, while the iso-structural compound 2 loses crystallinity in air and transforms into {[Pb2(asba)2(bipy)2(H2O)] ·H2O}n (2A) verified by TGA, elemental analysis and powder X-ray diffraction analysis (PXRD). 3 also shows reversible dehydration-rehydration behaviour, but it takes around one week to rehydrate even after exposure to water vapor, while the dehydrated phase of 4 rehydrates to a new crystalline material. 1 and 3 fall within the category of the recoverable collapsing and guest-induced re-formation frameworks. The water molecules in 1 and 3 have some influence on their solid state fluorescent emission intensity. This journal is the Partner Organisations 2014.