Variable-pressure oxygen-17 NMR studies on acetic acid exchange of manganese(II) perchlorate and manganese(II) acetate
Variable-pressure oxygen-17 NMR studies on acetic acid exchange of manganese(II) perchlorate and manganese(II) acetate
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高氯酸锰(II)和乙酸锰(II)的乙酸交换的变压氧 17 NMR研究
DOI：
10.1021/ic00291a030
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发表时间：
1988
影响因子：
4.6
通讯作者：
Motoharu Tanaka
中科院分区：
文献类型：
--
作者：
M. Ishii;S. Funahashi;Motoharu Tanaka
用变压/SUP17/O FT-NMR线展宽方法研究了高氯酸锰和醋酸锰在以二氯甲烷-d/sub2/为稀释剂的醋酸(HOAc)中的交换行为。在258K下，对Mn(ClO/sub4/)/sub2/和对Mn(OAc)/sub2/，激活体积分别为+0.4/+-0.7 cm/sup3/mol/sup/-1/和+6.7/+-0.6 cm/sup3/mol/sup/sup/1/。这些正值对于迄今研究的锰(II)上的溶剂交换来说是不寻常的，并根据醋酸分子的体积和与锰(II)结合的配体的影响进行了讨论。参考文献26篇，附图4篇，表2篇。
Acetic acid exchange of manganese(II) perchlorate and manganese(II) acetate in acetic acid (HOAc) involving dichloromethane-d/sub 2/ as a diluent has been studied at various pressures up to 180 MPa by the variable-pressure /sup 17/O FT-NMR line-broadening method. The activation volumes at 258 K are +0.4 /plus minus/ 0.7 cm/sup 3/ mol/sup /minus/1/ for Mn(ClO/sub 4/)/sub 2/ and +6.7 /plus minus/ 0.6 cm/sup 3/ mol/sup /minus/1/ for Mn(OAc)/sub 2/, respectively. These positive values are unusual for the solvent exchange on manganese(II) studied so far and are discussed in terms of the bulkiness of acetic acid molecules and the effect of the ligand bound to the manganese(II). 26 references, 4 figures, 2 tables.