TY - JOUR
T1 - Chemistry of 2,4,6-trimercapto-1,3,5-triazine (TMT)
T2 - Acid dissociation constants and group 2 complexes
AU - Henke, K. R.
AU - Hutchison, A. R.
AU - Krepps, M. K.
AU - Parkin, S.
AU - Atwood, D. A.
PY - 2001/8/13
Y1 - 2001/8/13
N2 - The acid dissociation constants of 2,4,6-trimercaptotriazine (H3TMT, 1) were determined and now can be employed in the preparation of complexes having specific M-TMT (M = divalent metal; TMT = 2,4,6-trimercapto-1,3,5-triazinide, C3N3S33- ratios. For example, the combination of H3TMT (1) with Mg(OH)2 at pH 7.1 leads to the crystallization of Mg(H2TMT)2·6H2O (4). With the appropriate pH adjustment, the contiguous series of compounds Ba3(TMT)2·8H2O (3), Ba(H2TMT)2·7H2O (5), and BaHTMT·3H2O (6) can be isolated. The compounds were characterized by mp, IR, TGA, elemental analysis, and, in the cases of 4, 5, and 6, crystallography. The comparison of 4 with 5 and 6 offers an interesting view of the difference in hard and soft bonding with TMT. In the saltlike Mg structure of 4, there is extensive hydrogen bonding, but in the Ba structures, 5 and 6, covalent Ba-S bonding dominates.
AB - The acid dissociation constants of 2,4,6-trimercaptotriazine (H3TMT, 1) were determined and now can be employed in the preparation of complexes having specific M-TMT (M = divalent metal; TMT = 2,4,6-trimercapto-1,3,5-triazinide, C3N3S33- ratios. For example, the combination of H3TMT (1) with Mg(OH)2 at pH 7.1 leads to the crystallization of Mg(H2TMT)2·6H2O (4). With the appropriate pH adjustment, the contiguous series of compounds Ba3(TMT)2·8H2O (3), Ba(H2TMT)2·7H2O (5), and BaHTMT·3H2O (6) can be isolated. The compounds were characterized by mp, IR, TGA, elemental analysis, and, in the cases of 4, 5, and 6, crystallography. The comparison of 4 with 5 and 6 offers an interesting view of the difference in hard and soft bonding with TMT. In the saltlike Mg structure of 4, there is extensive hydrogen bonding, but in the Ba structures, 5 and 6, covalent Ba-S bonding dominates.
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U2 - 10.1021/ic0103188
DO - 10.1021/ic0103188
M3 - Article
C2 - 11487353
AN - SCOPUS:0035854901
SN - 0020-1669
VL - 40
SP - 4443
EP - 4447
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 17
ER -