Zur Chemie und Konstitution borsaurer Salze. XV. Bildung und Darstellung von gemischten Monoboraten des Typs MeLiBO₃, (Me = Co, Zn, Mn)

Abstract

Während von Eisen und Nickel bisher keine Salze des Typs MeLiBO3 erhalten wurden, treten die des Kobalts, Zinks und Mangans in den quasibinären Systemen MeOLiBO2 auf. In Analogie zum MgLiBO3 schmelzen alle drei inkongruent unter Abscheidung des Schwermetalloxides. Sie sind durch Tempern der entsprechenden Oxide mit LiBO2 im Überschuß bei 800°C (unter Ausschluß von O2 für CoLiBO3 und MnLiBO3 und MnLiBO3) leicht zugänglich. Der LiBO2‐Überschuß wird mit wasserfreiem Methanol extrahiert.

Developing Intense Blue and Magenta Colors in α‐LiZnBO3: The Role of 3d‐Metal Substitution and Coordination

“…We have explored the representative members, a-LiZn 0.85 Co II 0.15 BO 3 , a-LiZn 0.95 Ni II 0.05 BO 3 ,a nd a-LiZn 0.90 Cu II 0.10 BO 3 ,f or possible NIR-reflectance behavior ( Figure 10 and Figure S9) to assess the potentiala pplication of these compounds as cool pigments. 12 Cl (x = 0, 2.5, 3.0) and Ba 3 Mn 3Àx P x O 12 Cl (x = 0, 2.5, 3.0) [24] exhibit av alue of approximately 75 %. The present compounds, however, exhibit NIR-reflectivity values that are considerably higherc ompared with other blue-colored compounds, such as CoAl 2 O 4 and YIn 1Àx Mn x O 3 .…”

“…We recently reported the substitution of Co II and Ni II ions into trigonal bipyramidal (TBP) Mg II sites of LiMgBO 3 , which resulted in purple‐blue and beige‐red colors in the host . The zinc analogue of LiMgBO 3 is also well documented and has two polymorphic phases: 1) α‐LiZnBO 3 (high‐temperature phase), which is stabilized at approximately 810 °C and has a structure composed of ZnO 4 tetrahedra, LiO 5 TBPs, and BO 3 triangles and 2) β‐LiZnBO 3 (low‐temperature phase), which is prepared by a hydrothermal method and has a structure composed of LiO 5 and ZnO 5 TBPs and BO 3 triangles, similar to LiMgBO 3 . Having already investigated LiMgBO 3 , which is isostructural with β‐LiZnBO 3 , we now examine α‐LiZnBO 3 (space group C 2/ c ; a =8.746, b =5.091, c =6.129 Å; β =118.75°) as a possible host in which the LiO 5 TBPs and ZnO 4 tetrahedra are distorted (Figure and Table ) .…”

“…[10] The zinc analogueo fLiMgBO 3 is also well documented and has two polymorphicp hases:1 ) a-LiZnBO 3 (high-temperature phase), which is stabilized at approximately 810 8Ca nd has as tructure composed of ZnO 4 tetrahedra, LiO 5 TBPs, and BO 3 triangles [11] and 2) b-LiZnBO 3 (low-temperature phase), which is prepared by ah ydrothermalm ethoda nd has as tructure composed of LiO 5 and ZnO 5 TBPs and BO 3 triangles, similar to LiMgBO 3 . [12] Havinga lready investigated LiMgBO 3 ,w hich is iso-structural with b-LiZnBO 3 ,w en ow examine a-LiZnBO 3 (space group C2/c; a = 8.746, b = 5.091, c = 6.129 ; b = 118.758)a s ap ossible host in which the LiO 5 TBPs and ZnO 4 tetrahedra are distorted( Figure 1a nd Ta ble 1). [11] In addition, there is also disorder betweent he Li and Zn atoms, which appear to occupy very closely placed positions with an occupancy factor of around0 .5 (Figure 1).…”

Preparation, crystal structure and photoluminescence of lithium magnesium manganese borate solid solutions, LiMg1−Mn BO3

“…The preparation of LiMgBO 3 and LiMnBO 3 has been reported by Lehmann et al [10,11]. The crystal structures of monoclinic and hexagonal phases of LiMnBO 3 have been analyzed by Bondareva et al [12] and Legagneur et al [13], respectively.…”

Lithium metal borate (LiMBO3) family of insertion materials for Li-ion batteries: a sneak peak

“…It makes the LiMBO 3 borates distinct among the polyanionic materials. [19], LiMnBO 3 [20], LiMgBO 3 [21], and hexagonal structured LiCdBO 3 [22,23] have been investigated. Monoclinic LiCoBO 3 was reported in the late 90s [24,25].…”