Synthesis, crystal structure and luminescent properties of one coordination polymer of cadmium(II) with mixed thiocyanate and hexamethylenetetramine ligands

Hexamethylenetetramine: An old new building block for design of coordination polymers

“…As typical examples of self-assembly in water, the syntheses of 1D [Cu 4 ( 2 -mal) 4 ( 4 -hmt)(H 2 O) 4 ] n ·3nH 2 O (28) [34], 2D [Cd 2 ( 2 -NCS) 4 ( 2 -hmt)(H 2 O) 2 ] n ·nH 2 O (32) [16] and 3D [Hg 3 ( 2 -Cl) 4 ( 2 -NCS) 2 ( 3 -hmt) 2 ] n (66) [63] coordination polymers can be described in more detail. These are based on the combination, in aqueous medium at r.t., of a simple metal salt (Cu(ClO 4 ) 2 ·6H 2 O, CdSO 4 ·8/3H 2 O or HgCl 2 ) with hmt and the corresponding auxiliary ligand (Na 2 mal for 28, or KSCN for 32 and 66), followed by filtration and crystallization of the obtained filtrate.…”

“…Nevertheless, there is a good number of hmt polymers (mainly 3D and 2D networks) that show high thermal stability. The decomposition of metal-organic skeletons, with an eventual loss of hmt moieties, can only begin at temperatures as high as 295 (in 34 [41]), 290 (in 53 [35a], 70 [18]), 245 (in 57 [29]), 240 (in 71 [25]), 235 (in 32 [16]), or 225 • C (in 51 [33a], 63 [26b]). These elevated decomposition limits are well comparable with those of coordination polymers derived from aromatic N-or O-donor ligands.…”

Alkali metal halogenides coordination compounds with hexamethylenetetramine

“…The research of compounds containing these cations, their ionic antagonists (like other alkaline metals) with anions existing in body fluids is thus of great importance, as they affect the sodium-potassium pump. In addition, recently, an increasing interest is put on construction of dinuclear, multinuclear and polymeric coordination compounds [24][25][26][27] created by self-assembly [28] of the components [29][30][31][32].…”

One New Inorganic-Organic Hybrid Polyoxometalate [(NH3C6H4)2SO2]2SiMo12O40·2CH3CN·CH3OH·2H2O: Synthesis, Crystal Structure, and Luminescent Properties

“…Our current interest is the incorporation of organonitrogen building blocks as counterions in the fascinating polyoxometalate chemistry and this strategy is anticipated to affect their appealing structural and properties, which should lead to interesting new functional materials. As a part of our continuing investigations on inorganic-organic hybrid compounds and their photoluminescent properties, [16][17][18][19][20][21][22] herein we report the synthesis and crystal structure of one new charge transfer salt [(NH 3 C 6 H 4 ) 2 SO 2 ] 2 SiMo 12 O 40 ·2CH 3 CN·CH 3 OH·2H 2 O 1 displaying strong fluorescent emission at room temperature.…”