Laurionite-type M(OH)X (MBa, Pb; XCl, Br, I) and Sr(OH)I. An IR and Raman spectroscopic study

Synthesis and Characterization of the Manganese Hydroxide Halides Mn(OH)X (X = Br, I) and Crystal Structure of trans‐MnBr2·4H2O

“…Many divalent metal hydroxide halides of the type M (OH) X ( M = Mg, Ca, Ba, Sr, Pb, Mn, Fe, Co, Ni, Cu, Zn, Cd, Sn, Sr; X = Cl, Br, I) are known so far . The most prominent group of this class is constituted by the hydroxide chlorides.…”

“…Besides structure determination, the hydroxide halides were also extensively studied in matters of their properties like vibrational and light absorption behavior , , . Lutz et al defined new distance limits for hydrogen bonds of the type O–H ··· X ( X = Cl, Br, I) while investigating the laurionite‐type hydroxide halides Sr(OH) X , Ba(OH) X , and their deuterated counterparts , . Generally, compounds of the type M (OH) X crystallize in structures related to the CdCl 2 (C19) structure type with a ccp stacking of the anions, or to the CdI 2 (C6) structure type exhibiting a hcp stacking of the anions.…”

Hydrous Phases and Hydrogen Bonding at High Pressure

“…Further recent work (Hofmeister et al 1999) suggests a geometric influence on the stretching frequency, specifically the O-H…O angle in high-pressure data. Hence, different cut-off wavenumbers may only be valid for particular metal ions (Lutz et al 1995a) and may evolve with bond geometry changes at high pressure .…”

“…Few analogs for the study of H…metal interactions exist amongst minerals stable at ambient conditions, the chief examples being those cases when the proton interacts with the lone pair of a metal such as is the case in the lead mineral laurionite, Pb(OH)Cl, and related materials (Lutz et al 1995a). Recent high-pressure investigations (Peter et al 1999) are an example of just how many influences there are on the geometry of this bond, how affected it is by changes in environment and how critical it is to carry out accurate structural investigations along with spectroscopic measurements.…”

Synthesis and Characterization of the New Manganese Hydroxide Chloride γ‐Mn(OH)Cl

“…Numerous divalent metal hydroxide chlorides of composition M(OH)Cl with M = Mg, Ca, Ba, Sr, Pb, Mn, Fe, Co, Ni, Cu, Zn, Cd, and Sn are known so far. Not all of them could be structurally characterized by X‐ray single‐crystal or powder diffraction data yet . These compounds crystallize with layered structures that can be derived from the Mg(OH) 2 (brucite) or CdI 2 structure type (C6) possessing a hcp stacking of the anions, or from the CdCl 2 structure type (C19) with cubic close packing of the anions.…”