Synthesis and crystal structure determination of aluminium hydroxide methane­sulfonate, Al(OH)(CH3SO3)2

Abstract

catena-Poly[aluminium(III)-μ-hydroxido-κ²O:O-di-μ-methane­sulfonato-κ⁴O:O′], [Al(OH)(CH₃SO₃)₂]_n, was prepared by mild hydro­thermal synthesis at 523 K and crystallizes as millimetre-sized clear and colourless needles. The asymmetric unit contains half of the repeating structure, one-dimensional (AlO₆)_∞ chains corner sharing through the axial hydroxyl group with a bend of ∼137^ο. The extended structure shows the chains are connected through weak meth­yl–hydrogen bonding in the [001] direction and strong hydrox­yl–hydrogen bonding in the [100] direction. This is the second aluminium-based methane­sulfonate salt reported to date.