# Fileset

[Supporting Information.pdf](https://mdr.nims.go.jp/filesets/9ea6f98f-031d-47b0-aa96-d4a254bbeb72/download)

## Creator

[Shota Takemura](https://orcid.org/0000-0003-3462-0032), [Yukinori Koyama](https://orcid.org/0000-0002-7090-4430), [Takayuki Nakanishi](https://orcid.org/0000-0003-3412-2842), [Shiro Funahashi](https://orcid.org/0000-0002-9381-3603), [Naoto Hirosaki](https://orcid.org/0000-0001-9218-9557), Hidekazu Ikeno, [Takashi Takeda](https://orcid.org/0000-0003-2510-4562)

## Rights

[Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International](https://creativecommons.org/licenses/by-nc-nd/4.0/)

## Other metadata

[Narrow-band phosphor K2ZnP2O7:Eu2+ discovered using local structure similarity](https://mdr.nims.go.jp/datasets/96165393-4749-4157-9134-0854ebc8a082)

## Fulltext

1    Figure S1. 2D t-SNE plot of the Na-centered local structures.   Figure S2. 2D t-SNE plot of the Rb-centered local structures. 2   Figure S3. 2D t-SNE plot of the Cs-centered local structures.   Figure S4. 2D t-SNE plot of the Ca-centered local structures. 3   Figure S5. 2D t-SNE plot of the Sr-centered local structures.   Figure S6. 2D t-SNE plot of the Ba-centered local structures. 4    Figure S7. Powder XRD patterns of the fired product. Filled black triangles, white triangles and white circles indicate diffraction peaks from K2ZnP2O7, KPO3 and α-KZnPO4, respectively.   Table S1. Atomic coordinates, occupancies, and isotropic atomic displacement parameters of K2ZnP2O7:Eu2+  Atom x y z Ueq (Å2) Occupancy K1 0.35039(7) 0.35039(7) 0 0.01568(11) 1 K2 0.81470(7) 0.18530(7) 0 0.01615(12) 1 Zn1 0.5 0 0.25 0.01003(6) 1 P1 0.13656(5) 0.13656(5) 0.21683(5) 0.00807(8) 1 O1 0 0 0.1668(2) 0.0131(4) 1 O2 0.30305(14) 0.07872(16) 0.15880(10) 0.01299(18) 1 O3 0.13633(16) 0.13633(16) 0.34854(15) 0.0151(3) 1 5   Table S2. Crystallographic data of K2ZnP2O7:Eu2+ Formula mass (g mol-1) 317.51 Crystal system tetragonal Space group P42/mnm (No. 136) Temperature (K) 301(2) Cell parameters (Å) a = b = 7.84328(13), c = 11.3195(3) Cell volume (Å3) 696.34(3) Z 4 Radiation type Mo Kα μ (mm-1) 5.17 Crystal size (mm3) 0.031 × 0.015× 0.011 Diffractometer ROD, Synergy Custom system, HyPix-Arc 150 Tmin, Tmax 0.911, 0.945 R[F2 > 2σ(F2)], wR(F2)  0.0494, 0.0787 S 1.457 Δρmax, Δρmin (e Å-3) 0.757, -0.858