Synthesis and crystal structure of a new strontium borate, Sr2B16O26

The trigonal polymorph of strontium tetraborate, β-SrB4O7

“…For the physical properties of this phase, see: Oseledchik et al (1995); Petrov et al (2004); Zaitsev et al (2006); Verwey et al (1992); Machida et al (1979); Pei et al (2000). For other crystalline phases in the system SrO-B 2 O 3 listed in the ICSD (2009), see: Ross & Angel (1991); Lin et al (1999); Wei et al (2001); Tang et al (2008); Lapshin et al (2007); Kim et al (1996). For glass-phases in this system, see: Imaoka (1959); Polyakova & Litovchik (2008).…”

“…The FIZ/NIST Inorganic Crystal Structure Database (release 2009;ICSD, 2009) reveals six phases in the SrO-B 2 O 3 system besides (I): strontium diborate, (IIa), SrB 2 O 4 (Kim et al, 1996), its high-pressure form (Ross & Angel, 1991), (IIb), distrontium diborate, Sr 2 B 2 O 5 , (III), (Lin et al, 1999), tristrontium tetraborate, Sr 3 B 2 O 6 , (IV), (Wei et al, 2001), distrontium hexadecaborate, Sr 2 B 16 O 26 , (V), (Tang et al, 2008) and tetrastrontium tetradecaborate, Sr 4 B 14 O 25 , (VI), (Lapshin et al, 2007). Only two of these phases crystallize in non-centrosymmetric space groups, viz.…”

2-(Carboxymethylsulfanyl)pyridine-3-carboxylic acid monohydrate

“…However, X-ray powder diffraction data of this phase and of two other new compounds described by these authors were not analysed because of impure samples. (Kim et al, 1996), its high-pressure form (Ross & Angel, 1991), (IIb), distrontium diborate, Sr 2 B 2 O 5 , (III), (Lin et al, 1999), tristrontium tetraborate, Sr 3 B 2 O 6 , (IV), (Wei et al, 2001), distrontium hexadecaborate, Sr 2 B 16 O 26 , (V), (Tang et al, 2008) and tetrastrontium tetradecaborate, Sr 4 B 14 O 25 , (VI), (Lapshin et al, 2007). Only two of these phases crystallize in non-centrosymmetric space groups, viz.…”

High‐Pressure Synthesis and Crystal Structure of the Highly Condensed Yttrium Borate YB7O12

“…Additionally, the boron to metal ratio of 7:1 is exceptionally high, which was, to the best of our knowledge, never found before in any high‐pressure borate. By searching the ICSD for comparably condensed borates, we found only three examples of ternary phases with higher boron to metal ratios namely CsB 9 O 14 with a ratio of 9:1 as well as BaB 8 O 13 and Sr 2 B 16 O 26 with a ratio of 8:1. Therefore, our new yttrium borate possesses the third highest boron to metal ratio of all ternary borates to date.…”