Phase transitions in (CH3)4NPbBr3

Structural tunability and switchable exciton emission in inorganic-organic hybrids with mixed halides

“…At y ¼ 1.0 (C12PB) a new phase transition peak appears at 16.92 C (T 0 ), which is thought to be a new low-temperature phase transition (phase 0 to phase I). 50 The phase transitions obtained from DSC are compared with the phase transition obtained from PL exciton switching measurements (Fig. 4) are compared in Figure 8.…”

Bis[(S)-β-phenethylammonium] tribromoplumbate(II)

“…For systems containing extended chains, the extended chains may be formed by one, two or three bridging halides. Very few examples of the last kind, also described in terms of face-sharing octahedra, involving bromide are known, for example, [ (Vanek et al, 1992). A search of the Cambridge Structural Database (Version 5.24, February 2003 release;Allen, 2002) for aminecontaining compounds yielded only one similar case involving bromide, [PhMe 3 N] 4 [Pb 3 Br 10 ] (Wiest et al, 1999), consisting of face-sharing trinuclear [Pb 3 Br 10 ] units connected by the sharing of a vertex.…”

“…For systems containing extended chains, the extended chains may be formed by one, two or three bridging halides. Very few examples of the latter, also described in terms of face (Vanek et al, 1992). A search of the Cambridge Structural Database (Allen, 2002) Having previously reported the structure of organic-inorganic hybrid perovskite containing a racemic mixture of the cation 1-phenylethylammonium (Billing, 2002), we present here the room temperature structure of the title compound, ((S)-C 6 H 5 C 2 H 4 NH 3 )[PbBr 3 ] (I).…”

A Methylviologen Lead(II) Iodide: Novel [PbI3-]∞ Chains with Mixed Octahedral and Trigonal Prismatic Coordination

“…Lead(II) iodide and its low-dimensional compounds are of particular interest due to their significant excitonic, third-order nonlinear optical, ferroelectric, and ferroelastic properties. − Although there is significant interest in the physical properties of low-dimensional lead(II) iodide compounds, relevant information regarding their structure-bonding-property relationships is still lacking. Aside from the layered perovskites, other low-dimensional lead(II) iodide complexes include chains of face-sharing ideal PbI 6 octahedra and chains of corner-sharing PbI 6 octahedra. , New lead(II) iodides which feature different chain structures of PbI 6 octahedra have also been reported, some of which may be described as chain derivatives of the layered PbI 2 structure. , A Pb(II) iodide complex that features an unusual [Pb 18 I 44 ] 8- anion cluster has also been reported .…”