Compound characterization data — Drozdowski et al., 2026

(IM)₂(EA)Pb₃Br₉ and (PY)₂(EA)Pb₃Br₉
Identifiers	(IM)₂(EA)Pb₃Br₉: 1; (PY)₂(EA)Pb₃Br₉: 2
Single-crystal XRD, crystal system and space group	Both compounds: orthorhombic, Pbca, Z = 8, Mᵣ = 1525.03
Single-crystal XRD, crystal size	1: 0.27 × 0.2 × 0.035 mm; 2 at 295 K: 0.45 × 0.25 × 0.17 mm; 2 at 100 K: 0.25 × 0.19 × 0.09 mm
Single-crystal XRD, maximum sin θ/λ	Both compounds: 0.610 Å⁻¹
Single-crystal XRD, 1 at 295 K	a = 17.720(5) Å, b = 15.246(5) Å, c = 21.615(6) Å, V = 5840(3) Å³, μ = 29.58 mm⁻¹; Tₘᵢₙ = 0.079, Tₘₐₓ = 1.000; measured, independent, and observed reflections = 36366, 5516, 3238; Rᵢₙₜ = 0.107; R[F² > 2σ(F²)] = 0.056, wR(F²) = 0.097, S = 1.01; 5516 reflections, 225 parameters, 34 restraints; Δρₘₐₓ = 1.70 e Å⁻³, Δρₘᵢₙ = −1.53 e Å⁻³
Single-crystal XRD, 1 at 100 K	a = 17.608(5) Å, b = 15.088(5) Å, c = 21.363(6) Å, V = 5676(3) Å³, μ = 30.43 mm⁻¹; Tₘᵢₙ = 0.070, Tₘₐₓ = 1.000; measured, independent, and observed reflections = 64487, 5356, 4129; Rᵢₙₜ = 0.086; R[F² > 2σ(F²)] = 0.037, wR(F²) = 0.063, S = 1.04; 5356 reflections, 222 parameters, 2 restraints; Δρₘₐₓ = 1.66 e Å⁻³, Δρₘᵢₙ = −1.31 e Å⁻³
Single-crystal XRD, 2 at 295 K	a = 17.468(5) Å, b = 15.371(5) Å, c = 21.735(6) Å, V = 5836(3) Å³, μ = 47.59 mm⁻¹; Tₘᵢₙ = 0.002, Tₘₐₓ = 0.073; measured, independent, and observed reflections = 39747, 5538, 4704; Rᵢₙₜ = 0.070; R[F² > 2σ(F²)] = 0.058, wR(F²) = 0.159, S = 1.03; 5538 reflections, 226 parameters, 30 restraints; Δρₘₐₓ = 3.15 e Å⁻³, Δρₘᵢₙ = −5.18 e Å⁻³
Single-crystal XRD, 2 at 100 K	a = 17.339(5) Å, b = 15.211(5) Å, c = 21.692(6) Å, V = 5721(3) Å³, μ = 48.55 mm⁻¹; Tₘᵢₙ = 0.004, Tₘₐₓ = 0.131; measured, independent, and observed reflections = 35399, 5432, 4866; Rᵢₙₜ = 0.071; R[F² > 2σ(F²)] = 0.045, wR(F²) = 0.122, S = 1.04; 5432 reflections, 228 parameters, 30 restraints; Δρₘₐₓ = 3.63 e Å⁻³, Δρₘᵢₙ = −3.23 e Å⁻³
Single-crystal XRD, Pb–Br distances	1: 2.77–3.33 Å; 2: 2.82–3.27 Å
Single-crystal XRD, selected Pb–Br distances, 1 at 295 K	Pb3–Br8ⁱ 3.1028(17), Pb3–Br3ⁱⁱ 3.0386(18), Pb3–Br1 3.0023(18), Pb3–Br4 3.052(2), Pb3–Br2 2.766(2), Pb1–Br6 3.0063(18), Pb1–Br5ⁱⁱⁱ 3.0868(18), Pb1–Br8 2.9672(18), Pb1–Br9 3.0664(18), Pb1–Br7 2.9486(18), Pb1–Br1 3.0791(19), Pb2–Br6 2.9986(18), Pb2–Br5 3.0063(17), Pb2–Br9ⁱᵛ 3.0589(18), Pb2–Br7 3.0758(18), Pb2–Br3 2.9846(18), Pb2–Br4 3.0192(19) Å
Single-crystal XRD, selected Pb–Br distances, 1 at 100 K	Pb1–Br8ᵛⁱⁱ 3.0880(11), Pb1–Br9ᵛⁱⁱ 3.3170(11), Pb1–Br3 3.0315(12), Pb1–Br1 3.0073(11), Pb1–Br4ᵛⁱ 3.0516(12), Pb1–Br2 2.7538(11), Pb3–Br6 3.0018(11), Pb3–Br5ᵛⁱⁱⁱ 3.0748(12), Pb3–Br8 2.9519(11), Pb3–Br9 3.0410(11), Pb3–Br7 2.9477(12), Pb3–Br1ⁱⁱ 3.0797(11), Pb2–Br6 2.9953(12), Pb2–Br5 2.9716(11), Pb2–Br9ᵛⁱⁱ 3.0453(12), Pb2–Br7 3.0538(11), Pb2–Br3 2.9891(11) Å
Single-crystal XRD, selected Pb–Br distances, 2 at 295 K	Pb2–Br2ᵛⁱⁱ 3.0763(15), Pb2–Br9 3.0228(16), Pb2–Br3 2.9499(15), Pb2–Br5 2.9656(15), Pb2–Br6 3.0450(16), Pb2–Br7 3.0796(17), Pb1–Br2 3.0064(15), Pb1–Br9 2.9869(16), Pb1–Br3 3.0523(16), Pb1–Br1 3.0087(16), Pb1–Br6ᵛⁱⁱⁱ 3.0666(16), Pb1–Br4 2.9994(18), Pb3–Br5ᵛ 3.0696(15), Pb3–Br1ᵛⁱ 3.0528(16), Pb3–Br7 2.9924(16), Pb3–Br8 2.8151(19), Pb3–Br4 3.0228(18) Å
Single-crystal XRD, selected Pb–Br distances, 2 at 100 K	Pb2–Br2ᵛⁱⁱ 3.0726(13), Pb2–Br9 3.0062(12), Pb2–Br3 2.9493(14), Pb2–Br5 2.9493(12), Pb2–Br6 3.0287(12), Pb2–Br7 3.0936(12), Pb1–Br2 2.9967(11), Pb1–Br9 2.9554(14), Pb1–Br3 3.0340(12), Pb1–Br1 3.0175(12), Pb1–Br6ᵛⁱⁱⁱ 3.0810(14), Pb1–Br4 3.0021(12), Pb3–Br5ᵛ 3.0317(12), Pb3–Br1ᵛⁱ 3.0377(14), Pb3–Br7 3.0137(12), Pb3–Br8 2.8173(12), Pb3–Br4 2.9960(14) Å
Single-crystal XRD, selected angles, 1 at 295 K	Br3ⁱⁱ–Pb3–Br8ⁱ 90.24(5), Br3ⁱⁱ–Pb3–Br4 170.48(6), Br1–Pb3–Br8ⁱ 177.78(5), Br1–Pb3–Br3ⁱⁱ 91.95(5), Br1–Pb3–Br4 87.20(5), Br4–Pb3–Br8ⁱ 90.58(5), Br2–Pb3–Br8ⁱ 87.94(6), Br2–Pb3–Br3ⁱⁱ 89.70(6), Br2–Pb3–Br1 92.44(6), Br2–Pb3–Br4 99.80(7), Br6–Pb1–Br5ⁱⁱⁱ 90.63(5), Br6–Pb1–Br9 176.69(4), Br6–Pb1–Br1 92.87(5), Br8–Pb1–Br6 90.69(5), Br8–Pb1–Br5ⁱⁱⁱ 86.65(5), Br8–Pb1–Br9 90.88(5), Br8–Pb1–Br1 175.90(4), Br9–Pb1–Br5ⁱⁱⁱ 86.56(5), Br9–Pb1–Br1 85.45(5), Br7–Pb1–Br6 88.63(5), Br7–Pb1–Br5ⁱⁱⁱ 174.55(5), Br7–Pb1–Br8 87.96(5), Br7–Pb1–Br9 94.34(5), Br7–Pb1–Br1 94.15(5), Br1–Pb1–Br5ⁱⁱⁱ 91.28(5), Br6–Pb2–Br5 90.70(5), Br6–Pb2–Br9ⁱᵛ 178.79(5), Br6–Pb2–Br7 86.44(5), Br6–Pb2–Br4 88.82(5), Br5–Pb2–Br9ⁱᵛ 88.12(5), Br5–Pb2–Br7 85.01(5), Br5–Pb2–Br4 178.94(6), Br9ⁱᵛ–Pb2–Br7 93.72(5), Br3–Pb2–Br6 90.86(5), Br3–Pb2–Br5 88.99(5), Br3–Pb2–Br9ⁱᵛ 88.85(5), Br3–Pb2–Br7 173.38(6), Br3–Pb2–Br4 90.07(6), Br4–Pb2–Br9ⁱᵛ 92.35(5), Br4–Pb2–Br7 95.91(6), Pb2–Br6–Pb1 92.11(5), Pb2–Br5–Pb1ⁱᵛ 92.96(5), Pb1–Br8–Pb3ᵛ 95.82(5), Pb2ⁱⁱⁱ–Br9–Pb1 92.33(5), Pb1–Br7–Pb2 91.70(5), Pb2–Br3–Pb3ᵛⁱ 97.72(5), Pb3–Br1–Pb1 135.26(6), Pb2–Br4–Pb3 136.08(6)°
Single-crystal XRD, selected angles, 1 at 100 K	Br8ᵛⁱⁱ–Pb1–Br9ᵛⁱⁱ 84.71(3), Br3–Pb1–Br8ᵛⁱⁱ 88.27(3), Br3–Pb1–Br9ᵛⁱⁱ 84.53(3), Br3–Pb1–Br4ᵛⁱ 171.96(3), Br1–Pb1–Br8ᵛⁱⁱ 178.90(3), Br1–Pb1–Br9ᵛⁱⁱ 95.54(3), Br1–Pb1–Br3 92.81(3), Br1–Pb1–Br4ᵛⁱ 86.34(3), Br4ᵛⁱ–Pb1–Br8ᵛⁱⁱ 92.61(3), Br4ᵛⁱ–Pb1–Br9ᵛⁱⁱ 87.60(3), Br2–Pb1–Br8ᵛⁱⁱ 86.95(3), Br2–Pb1–Br9ᵛⁱⁱ 169.92(3), Br2–Pb1–Br3 89.58(3), Br2–Pb1–Br1 92.90(4), Br2–Pb1–Br4ᵛⁱ 98.44(3), Br6–Pb3–Br5ᵛⁱⁱⁱ 90.75(3), Br6–Pb3–Br9 176.73(2), Br6–Pb3–Br1ⁱⁱ 93.03(3), Br5ᵛⁱⁱⁱ–Pb3–Br1ⁱⁱ 91.61(3), Br8–Pb3–Br6 89.64(3), Br8–Pb3–Br5ᵛⁱⁱⁱ 86.51(3), Br8–Pb3–Br9 92.20(3), Br8–Pb3–Br1ⁱⁱ 176.76(2), Br9–Pb3–Br5ᵛⁱⁱⁱ 86.66(3), Br9–Pb3–Br1ⁱⁱ 85.05(3), Br7–Pb3–Br6 89.72(3), Br7–Pb3–Br5ᵛⁱⁱⁱ 173.22(3), Br7–Pb3–Br8 86.73(3), Br7–Pb3–Br9 93.09(3), Br7–Pb3–Br1ⁱⁱ 95.11(3), Br6–Pb2–Br9ᵛⁱⁱ 178.48(3), Br6–Pb2–Br7 87.85(3), Br6–Pb2–Br4 89.04(3), Br5–Pb2–Br6 90.06(3), Br5–Pb2–Br9ᵛⁱⁱ 88.44(3), Br5–Pb2–Br7 84.12(3), Br5–Pb2–Br3 88.17(3), Br5–Pb2–Br4 177.70(3), Br9ᵛⁱⁱ–Pb2–Br7 91.74(3), Br9ᵛⁱⁱ–Pb2–Br4 92.47(3), Br3–Pb2–Br6 90.00(3), Br3–Pb2–Br9ᵛⁱⁱ 90.21(3), Br3–Pb2–Br7 171.99(3), Br3–Pb2–Br4 89.72(3), Br4–Pb2–Br7 97.96(3), Pb2–Br6–Pb3 90.52(3), Pb2–Br5–Pb3ᵛⁱⁱ 92.83(3), Pb3–Br8–Pb1ᵛⁱⁱⁱ 94.53(4), Pb3–Br9–Pb2ᵛⁱⁱⁱ 92.06(3), Pb3–Br7–Pb2 90.41(3), Pb2–Br3–Pb1 96.00(3), Pb1–Br1–Pb3ᵛⁱ 135.72(3), Pb2–Br4–Pb1ⁱⁱ 134.82(3)°
Single-crystal XRD, selected angles, 2 at 295 K	Br2ᵛⁱⁱ–Pb2–Br7 90.32(5), Br9–Pb2–Br2ᵛⁱⁱ 91.08(4), Br9–Pb2–Br6 176.35(4), Br9–Pb2–Br7 92.60(5), Br3–Pb2–Br2ᵛⁱⁱ 174.41(4), Br3–Pb2–Br9 87.94(4), Br3–Pb2–Br5 87.94(5), Br3–Pb2–Br6 94.80(4), Br3–Pb2–Br7 95.22(5), Br5–Pb2–Br2ᵛⁱⁱ 86.60(4), Br5–Pb2–Br9 92.18(5), Br5–Pb2–Br6 90.33(4), Br5–Pb2–Br7 174.36(4), Br6–Pb2–Br2ᵛⁱⁱ 86.42(4), Br6–Pb2–Br7 84.76(5), Br2–Pb1–Br3 85.53(5), Br2–Pb1–Br1 88.86(5), Br2–Pb1–Br6ᵛⁱⁱⁱ 87.28(4), Br9–Pb1–Br2 92.07(5), Br9–Pb1–Br3 86.73(4), Br9–Pb1–Br1 88.78(4), Br9–Pb1–Br6ᵛⁱⁱⁱ 176.06(4), Br9–Pb1–Br4 90.98(6), Br3–Pb1–Br6ᵛⁱⁱⁱ 97.09(4), Br1–Pb1–Br3 172.67(5), Br1–Pb1–Br6ᵛⁱⁱⁱ 87.32(4), Br4–Pb1–Br2 175.49(6), Br4–Pb1–Br3 91.33(6), Br4–Pb1–Br1 94.53(6), Br4–Pb1–Br6ᵛⁱⁱⁱ 89.91(5), Br1ᵛⁱ–Pb3–Br5ᵛ 92.54(5), Br7–Pb3–Br5ᵛ 175.61(4), Br7–Pb3–Br1ᵛⁱ 91.75(5), Br7–Pb3–Br4 86.16(5), Br8–Pb3–Br5ᵛ 89.75(5), Br8–Pb3–Br1ᵛⁱ 85.68(5), Br8–Pb3–Br7 91.52(6), Br8–Pb3–Br4 99.62(7), Br4–Pb3–Br5ᵛ 89.49(5), Br4–Pb3–Br1ᵛⁱ 174.35(6), Pb1–Br2–Pb2ᵛⁱⁱⁱ 93.33(4), Pb1–Br9–Pb2 92.03(4), Pb2–Br3–Pb1 92.17(4), Pb2–Br5–Pb3ⁱ 95.36(5), Pb1–Br1–Pb3ⁱⁱ 97.59(5), Pb2–Br6–Pb1ᵛⁱⁱ 92.77(4), Pb3–Br7–Pb2 135.49(6), Pb1–Br4–Pb3 141.19(6)°
Single-crystal XRD, selected angles, 2 at 100 K	Br2ᵛⁱⁱ–Pb2–Br7 91.25(4), Br9–Pb2–Br2ᵛⁱⁱ 89.65(3), Br9–Pb2–Br6 174.96(3), Br9–Pb2–Br7 92.61(4), Br3–Pb2–Br2ᵛⁱⁱ 174.45(3), Br3–Pb2–Br9 88.31(3), Br3–Pb2–Br6 94.96(3), Br3–Pb2–Br7 94.01(4), Br5–Pb2–Br2ᵛⁱⁱ 86.60(3), Br5–Pb2–Br9 92.47(4), Br5–Pb2–Br3 88.33(4), Br5–Pb2–Br6 91.47(4), Br5–Pb2–Br7 174.47(3), Br6–Pb2–Br2ᵛⁱⁱ 87.44(3), Br6–Pb2–Br7 83.34(4), Br2–Pb1–Br3 85.31(3), Br2–Pb1–Br1 87.64(3), Br2–Pb1–Br6ᵛⁱⁱⁱ 87.86(3), Br2–Pb1–Br4 172.85(3), Br9–Pb1–Br2 92.86(4), Br9–Pb1–Br3 87.67(3), Br9–Pb1–Br1 88.04(3), Br9–Pb1–Br6ᵛⁱⁱⁱ 175.97(3), Br9–Pb1–Br4 91.80(4), Br3–Pb1–Br6ᵛⁱⁱⁱ 96.33(3), Br1–Pb1–Br3 171.55(3), Br1–Pb1–Br6ᵛⁱⁱⁱ 88.03(3), Br4–Pb1–Br3 89.47(4), Br4–Pb1–Br1 97.94(4), Br4–Pb1–Br6ᵛⁱⁱⁱ 87.86(4), Br5ᵛ–Pb3–Br1ᵛⁱ 93.53(3), Br7–Pb3–Br5ᵛ 174.01(3), Br7–Pb3–Br1ᵛⁱ 92.44(3), Br8–Pb3–Br5ᵛ 90.02(4), Br8–Pb3–Br1ᵛⁱ 85.26(4), Br8–Pb3–Br7 89.88(4), Br8–Pb3–Br4 98.04(4), Br4–Pb3–Br5ᵛ 89.29(4), Br4–Pb3–Br1ᵛⁱ 175.67(3), Br4–Pb3–Br7 84.79(3), Pb1–Br2–Pb2ᵛⁱⁱⁱ 92.63(3), Pb1–Br9–Pb2 91.79(3), Pb2–Br3–Pb1 91.35(3), Pb2–Br5–Pb3ⁱ 94.26(4), Pb1–Br1–Pb3ⁱⁱ 96.35(3), Pb2–Br6–Pb1ᵛⁱⁱ 91.84(3), Pb3–Br7–Pb2 136.13(5), Pb3–Br4–Pb1 143.14(4)°
Single-crystal XRD, selected-distance and angle symmetry codes	(i) x−1/2, y, −z+1/2; (ii) −x+1, y−1/2, −z+1/2; (iii) −x+3/2, y−1/2, z; (iv) −x+3/2, y+1/2, z; (v) x+1/2, y, −z+1/2; (vi) −x+1, y+1/2, −z+1/2; (vii) −x+1/2, y+1/2, z; (viii) −x+1/2, y−1/2, z
Single-crystal XRD, hydrogen bonds, D–H; H···A; D···A; D–H···A, 1 at 295 K	N11–H11A···Br5: 0.89 Å; 2.56 Å; 3.408(13) Å; 159.4°. N11–H11C···Br8: 0.89; 2.85; 3.548(13); 136.6. N11–H11E···Br1ⁱ: 0.89; 2.61; 3.383(15); 145.1. N11–H11F···Br4ⁱⁱ: 0.89; 2.45; 3.332(14); 169.1. N6–H6···Br6ⁱⁱⁱ: 0.86; 2.65; 3.404(18); 146.9. N3–H3···Br4: 0.86; 2.86; 3.644(19); 153.4. N1–H1···Br3ⁱᵛ: 0.86; 2.81; 3.518(16); 140.4. N8–H8···Br1ⁱ: 0.86; 2.65; 3.41(2); 149.4. C7–H7···Br2ⁱ: 0.93; 2.80; 3.655(19); 152.5. C2–H2···Br6: 0.93; 2.70; 3.58(2); 157.3
Single-crystal XRD, hydrogen bonds, D–H; H···A; D···A; D–H···A, 1 at 100 K	N11–H11A···Br8ⁱⁱ: 0.91 Å; 2.65 Å; 3.458(8) Å; 148.2°. N11–H11B···Br4: 0.91; 2.54; 3.323(8); 145.0. N11–H11C···Br5ⁱⁱ: 0.91; 2.82; 3.365(7); 119.7. N11–H11C···Br1: 0.91; 2.76; 3.408(8); 129.5. N6–H6···Br6: 0.88; 2.55; 3.327(8); 147.8. N3–H3···Br4ᵛ: 0.88; 2.68; 3.484(9); 152.4. N1–H1···Br3: 0.88; 2.70; 3.433(8); 142.1. N8–H8···Br1ᵛ: 0.88; 2.58; 3.347(8); 146.6. C7–H7···Br2ᵛ: 0.95; 2.85; 3.698(9); 148.9. C2–H2···Br6ᵛ: 0.95; 2.90; 3.723(9); 145.9. C10–H10···Br2ᵛⁱ: 0.95; 2.92; 3.512(8); 121.4
Single-crystal XRD, hydrogen bonds, D–H; H···A; D···A; D–H···A, 2 at 295 K	N11–H11A···Br7ᵛⁱⁱ: 0.89 Å; 2.60 Å; 3.358(17) Å; 143.1°. N11–H11B···Br5: 0.89; 2.86; 3.616(17); 144.3. N11–H11C···Br4ᵛⁱⁱⁱ: 0.89; 2.44; 3.320(14); 169.3. N7–H7···Br8ᵛⁱⁱ: 0.86; 2.56; 3.392(14); 162.7. C8–H8···Br9ⁱˣ: 0.93; 2.71; 3.54(3); 149.1. N2–H2···Br1ᵛ: 0.86; 2.76; 3.46(2); 139.6. N1–H1···Br9: 0.86; 2.66; 3.45(2); 153.6. N6–H6···Br7ᵛⁱⁱ: 0.86; 2.63; 3.40(2); 149.6
Single-crystal XRD, hydrogen bonds, D–H; H···A; D···A; D–H···A, 2 at 100 K	N11–H11A···Br7ᵛⁱⁱ: 0.91 Å; 2.55 Å; 3.381(12) Å; 152.4°. N11–H11B···Br2: 0.91; 2.88; 3.336(10); 112.3. N11–H11B···Br5: 0.91; 2.89; 3.596(13); 135.2. N11–H11C···Br4ᵛⁱⁱⁱ: 0.91; 2.40; 3.303(11); 172.8. C3–H3···Br8ⁱⁱ: 0.95; 2.83; 3.618(12); 141.5. N7–H7···Br8ᵛⁱⁱ: 0.88; 2.46; 3.316(11); 163.1. C8–H8···Br9ⁱˣ: 0.95; 2.79; 3.625(12); 147.6. N2–H2···Br1ᵛ: 0.88; 2.66; 3.366(10); 138.5. N1–H1···Br9: 0.88; 2.65; 3.398(12); 144.1. N6–H6···Br3: 0.88; 2.91; 3.455(13); 121.5. N6–H6···Br7ᵛⁱⁱ: 0.88; 2.56; 3.292(12); 140.5
Single-crystal XRD, hydrogen-bond symmetry codes	(i) −x+3/2, y+1/2, z; (ii) x+1/2, y, −z+1/2; (iii) −x+3/2, −y+2, z+1/2; (iv) −x+1, −y+2, −z; (v) −x+1, −y+1, −z+1; (vi) x−1/2, −y+3/2, −z+1; (vii) −x+1/2, y−1/2, z; (viii) x−1/2, y, −z+1/2; (ix) −x+1/2, −y+1, z−1/2
Single-crystal XRD, octahedral angle variance	Pb(1)Br₆ and Pb(2)Br₆: σ² = 8.9–11.4 deg²; Pb(3)Br₆: σ² = 22.6 deg²
Single-crystal XRD, EA⁺ cations	Disordered over two positions at 295 K and progressively locked into a single orientation as temperature decreased, without a change in crystal-structure symmetry
UV–Vis–NIR diffuse-reflectance spectroscopy	1: slightly enhanced band intensity at 375–420 nm, excitonic absorption band at 348 nm, Eg = 3.77 eV; 2: excitonic absorption band at 351 nm, Eg = 3.76 eV
Photoluminescence, 1, excitation-dependent emission	300–340 nm excitation: STE1 emission spanning 475–850 nm; 340–360 nm: STE1 significantly quenched and a narrow 415–450 nm band emerged; above 360 nm: STE1 progressively decreased, the FE band intensified, and STE2 emerged with a maximum at ~650 nm relative to the STE1 maximum at ~700 nm
Photoluminescence decay, 1	Average lifetimes ~200 ns for STE1 and ~275 ns for STE2; STE2 showed wavelength-dependent decay kinetics across the emission band
Photoluminescence excitation, 1	Bands at 300 nm (4.13 eV), 340 nm (3.65 eV), and 390 nm (3.18 eV)
Temperature-dependent photoluminescence, 1 and 2	1: overall emission intensity decreased substantially with increasing temperature at both excitation wavelengths. 2: STE emission progressively decreased; FE was strongly quenched at 80–200 K, increased between 200 and 240 K, and gradually decreased above 240 K. The sharp feature at 688 nm was an instrumental artefact
CIE 1931 chromaticity, 1, 350 nm excitation	80 K: x = 0.577, y = 0.396; 300 K: x = 0.467, y = 0.415
CIE 1931 chromaticity, 1, 400 nm excitation	80 K: x = 0.429, y = 0.321; 230 K: x = 0.330, y = 0.318; 300 K: x = 0.338, y = 0.335
CIE 1931 chromaticity, 2, 390 nm excitation	80 K: x = 0.549, y = 0.399; 240 K: x = 0.354, y = 0.320; 300 K: x = 0.370, y = 0.342