Predicted Material Properties Repository and Database (CrystalDFT)

A database of computationally predicted organic material properties


Welcome to the CrystalDFT Database!


This is an ongoing open-access project that contains our group's DFT-calculated electromechanical properties of small biomolecular crystals, metal-organic frameworks (MOFs) and racemic compounds. We invite you to look through this database and pick crystals to grow and characterise for piezoelectric applications or mechanical testing. Are you a computational chemist? Download some cifs and let us know how your predicted values compare! Do you work with photosalient materials? Check out our in-silico stress-strain curves.

If you want your published or unpublished data uploaded to this database you can contact sarah.guerin@ul.ie and shubham.vishnoi@ul.ie. We also welcome feedback on the site's usability, as well as suggested/new functional crystal structures to be included in our ongoing materials screenings. Our CrystalDFT work is published with the full methodology and discussion is now available for citation if you choose to use this database for your research. You can access it using the following link: https://onlinelibrary.wiley.com/doi/10.1002/anie.202501232.

"High-throughput computational screening of small, molecular crystals for sustainable piezoelectric materials"
Angew. Chem. Int. Ed. 2025, e202501232.

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ID Crystal Image COD/CSD ID Piezoelectric Stress [C/m2] / Strain Constants [pC/N] Elastic Constants [GPa]
edij ed_1 ed_2 ed_3 ed_4 ed_5 ed_6 cij c_1 c_2 c_3 c_4 c_5 c_6
251
Crystal Name: Aminoguanidinium 4,5-dicyano-1,2,3-triazolate   Chemical Formula: C5H7N9   H-M Space Group: Pc


HD View 3D View Crystal Details
e1_0.0300.0400.020c1_14.0611.3316.9404.210
e2_0000.3600.61c2_11.3330.1122.6309.460
e3_-0.01-0.01-0.05000c3_16.9422.6344.23017.350
d1_3.39-1.43-0.3901.820c4_0004.3901.81
d2_000455.820-908.58c5_4.219.4617.35013.610
d3_2.360.46-3.6803.760c6_0001.8100.23
252
Crystal Name: Benzyl N-{(1S)-2-hydroxy-1-[N-(2-nitrobenzylidene)hydrazinylcarbonyl]ethyl}carbamate   Chemical Formula: C18H18N4O6   H-M Space Group: P1


HD View 3D View Crystal Details
e1_0.09-0.06-0.05-0.01-0.040.02c1_29.0514.9212.472.47-0.04-2.67
e2_0.02-0.020-0.020.03-0.05c2_14.9221.3914.492.910.31-2.87
e3_0-0.02-0.060-0.020.03c3_12.4714.4926.774.834.091.95
d1_7.34-6.43-0.94-0.64-6.915.09c4_2.472.914.835.95-0.72-0.21
d2_1.1-4.883.09-4.474.66-10.71c5_-0.040.314.09-0.725.751.28
d3_1.522.84-5.652.41-0.338.35c6_-2.67-2.871.95-0.211.287
253
Crystal Name: 1,2-Naphthoquinone-2-semicarbazone   Chemical Formula: C11H9N3O2   H-M Space Group: P21


HD View 3D View Crystal Details
e1_0000.020-0.12c1_22.9912.5618.260-2.390
e2_-0.07-0.05-0.0400.010c2_12.5618.7111.1500.250
e3_000-0.020-0.02c3_18.2611.1532.280-8.950
d1_00022.890-23.05c4_0002.3601.45
d2_-3.43-1.141.401.50c5_-2.390.25-8.9506.940
d3_000-9.030-0.38c6_0001.4506.85
254
Crystal Name: Methyl 1,3-benzoxazole-2-carboxylate   Chemical Formula: C9H7NO3   H-M Space Group: P21


HD View 3D View Crystal Details
e1_0000.020-0.02c1_24.6710.359.6902.690
e2_0.01-0.02-0.0200.010c2_10.3512.2111.380-0.560
e3_000-0.0600.01c3_9.6911.3813.190-0.140
d1_0003.060-9.73c4_0006.8300.09
d2_1.51-0.31-2.6501.780c5_2.69-0.56-0.1403.810
d3_000-8.6305.29c6_0000.0902.01
255
Crystal Name: N-methyl-3,5-dinitro-1H-pyrazol-4-amine   Chemical Formula: C4H5N5O4   H-M Space Group: Pc


HD View 3D View Crystal Details
e1_00.17-0.050-0.030c1_14.6216.2915.2303.450
e2_000-0.140-0.05c2_16.2947.1514.0806.520
e3_-0.01-0.1-0.0900.010c3_15.2314.0829.7809.80
d1_-6.46.430.420-5.810c4_00015.11011.57
d2_000-24.01019.08c5_3.456.529.809.180
d3_14.84-5.25-11.9011.510c6_00011.57011.82
256
Crystal Name: 2-carbonohydrazonoylquinoxaline   Chemical Formula: C9H8N4   H-M Space Group: P21


HD View 3D View Crystal Details
e1_000-0.030-0.02c1_28.1619.2519.720-1.230
e2_0.05-0.03-0.040-0.010c2_19.2521.4820.2102.090
e3_000-0.0100c3_19.7220.2124.8601.250
d1_000-3.820-5.42c4_0006.2701.3
d2_10.26-9.16-2.6609.620c5_-1.232.091.2502.830
d3_000-1.010-0.68c6_0001.302.37
257
Crystal Name: L-Asparagine   Chemical Formula: C4H8N2O3   H-M Space Group: P21


HD View 3D View Crystal Details
e1_0000.10-0.07c1_6317.1820.090-9.820
e2_0.080.110.140-0.050c2_17.1829.7615.240-0.790
e3_000000.04c3_20.0915.2494.190-14.620
d1_0008.350-11.02c4_00012.800.53
d2_-0.363.520.380-3.650c5_-9.82-0.79-14.62012.990
d3_000-0.2406.17c6_0000.5306.89
258
Crystal Name: 3-(hydroxy(phenyl)methyl)-1-(2-methoxyphenyl)-3-methylpyrrolidin-2-one   Chemical Formula: C19H21NO3   H-M Space Group: P1


HD View 3D View Crystal Details
e1_0.13-0.02-0.02-0.010.010.07c1_25.7715.469.28-1-0.3-0.93
e2_0.020.080.01-0.02-0.03-0.02c2_15.4618.377.84-0.96-0.45-4.43
e3_0.060.03-0.040.020-0.04c3_9.287.8420.031.63-0.37-1.89
d1_11.35-8.36-2.73.092.833.68c4_-1-0.961.631.99-0.64-0.45
d2_-4.067.460.11-9.19-4.860.45c5_-0.3-0.45-0.37-0.645.93-1.05
d3_4.740.53-6.2319.581.24-2.69c6_-0.93-4.43-1.89-0.45-1.0511.21
259
Crystal Name: L-alanine   Chemical Formula: C3H7NO2   H-M Space Group: P212121


HD View 3D View Crystal Details
e1_000-0.0300c1_73.168.9515.65000
e2_0000-0.030c2_8.9530.1122.74000
e3_00000-0.04c3_15.6522.7436.35000
d1_000-3.3800c4_00010.2100
d2_0000-3.530c5_00008.110
d3_00000-5.75c6_000007.1
260
Crystal Name: 2,4,6-tricyano-1,3,5-triazine   Chemical Formula: C6N6   H-M Space Group: P21


HD View 3D View Crystal Details
e1_000-0.030-0.01c1_13.879.3310.2800.290
e2_0.050.030.010-0.010c2_9.3315.8511.0500.90
e3_0000.0300c3_10.2811.0515.60-0.490
d1_000-4.540-0.39c4_0005.500.97
d2_5.092.58-4.610-3.050c5_0.290.9-0.4905.750
d3_0005.420-0.84c6_0000.9705.69
261
Crystal Name: benzaldehyde   Chemical Formula: C10H8N2O   H-M Space Group: P21


HD View 3D View Crystal Details
e1_0000.020-0.01c1_22.8610.747.9200.70
e2_-0.020.090.0200.030c2_10.7424.0419.110-2.50
e3_0000.0600c3_7.9219.11230-0.860
d1_0000.840-10.5c4_0007.620-1.23
d2_-8.6624.66-14.96048.630c5_0.7-2.5-0.8601.750
d3_00010.32016.35c6_000-1.2300.97
262
Crystal Name: 5-nitrofurazone   Chemical Formula: C6H6N4O4   H-M Space Group: P21


HD View 3D View Crystal Details
e1_0000.0100.11c1_10.0612.0215.260-4.660
e2_0.130.190.090-0.050c2_12.0222.3315.690-7.610
e3_0000.080-0.04c3_15.2615.6923.030-9.880
d1_00058.25094.54c4_0009.250-5.59
d2_-73.6422.6244.28015.890c5_-4.66-7.61-9.88013.560
d3_00011.3204.4c6_000-5.5904.66
263
Crystal Name: hydroxyammonium (6-azido[1,2,4]triazolo[4,3-b][1,2,4,5]tetrazin-3-yl)(nitro)azanide   Chemical Formula: C3H4N12O3   H-M Space Group: P21


HD View 3D View Crystal Details
e1_0000.0100.26c1_48.222.2619.35010.330
e2_0.040.040.0600.040c2_22.2617.4612.050-0.080
e3_000-0.0100.11c3_19.3512.0516.1100.810
d1_0002.1026.48c4_00010.590-0.36
d2_-9.529.647.23013.610c5_10.33-0.080.81010.170
d3_00.010-0.63011.12c6_000-0.3609.68
264
Crystal Name: Beta-glycine   Chemical Formula: C2H5NO2   H-M Space Group: P21


HD View 3D View Crystal Details
e1_000-0.1100.23c1_65.0613.4620.920-8.450
e2_0-0.120.10-0.070c2_13.4629.8716.560-2.880
e3_0000.020-0.06c3_20.9216.5678.80-19.250
d1_000-17.84046.17c4_0008.8801.07
d2_0.24-5.311.630-2.70c5_-8.45-2.88-19.25018.050
d3_0003.130-11.72c6_0001.0705.32
265
Crystal Name: 2-(2-Nitrophenyl)acetohydrazide   Chemical Formula: C8H9N3O3   H-M Space Group: P21


HD View 3D View Crystal Details
e1_000-0.0500c1_23.815.1315.210-40
e2_-0.080.15-0.030-0.030c2_15.1331.0417.0701.540
e3_0000.080-0.06c3_15.2117.0724.970-1.690
d1_000-15.8305.88c4_0004.4902.78
d2_-13.9715.32-4.470-21.520c5_-41.54-1.6905.370
d3_00030.310-20.4c6_0002.7806.97
266
Crystal Name: Oxonium 3-amino-2,4-dinitro-5-oxocyclopenta-1,3-dien-1-olate   Chemical Formula: C5H5N3O7   H-M Space Group: C2


HD View 3D View Crystal Details
e1_0000.630-0.24c1_18.246.5514.810-0.890
e2_0.02-0.42-0.0500.070c2_6.5582.4422.890-4.040
e3_0001.40-0.55c3_14.8122.8940.040-10.30
d1_000-6.5907.56c4_000-64.72026.42
d2_-1.37-6.016.17013.440c5_-0.89-4.04-10.307.790
d3_000-17.6809.79c6_00026.420-8.09
267
Crystal Name: 5-(4-(4H-1,2,4-Triazol-4-yl)phenyl)-1H-tetrazole   Chemical Formula: C9H7N7   H-M Space Group: Pc


HD View 3D View Crystal Details
e1_0.02-0.010.1200.040c1_25.2912.6813.160-3.050
e2_000-0.0100.04c2_12.6838.428.680-6.10
e3_0.010.030.0800.030c3_13.1628.68350-8.360
d1_-0.56-8.6616.01021.550c4_00021.930-7.88
d2_00034.36096.79c5_-3.05-6.1-8.3605.550
d3_-1-2.768.19013.360c6_000-7.8803.2
268
Crystal Name: Acetic acid   Chemical Formula: C2H4O2   H-M Space Group: Pna21


HD View 3D View Crystal Details
e1_0000-0.070c1_18.795.979.5000
e2_0000.0900c2_5.9716.458.77000
e3_0.010.06-0.01000c3_9.58.7716.99000
d1_0000-8.940c4_0006.3500
d2_00014.1900c5_00007.440
d3_0.555.29-3.43000c6_000004.87
269
Crystal Name: 1H-Imidazol-3-ium-4-carboxylate   Chemical Formula: C4H4N2O2   H-M Space Group: Pna21


HD View 3D View Crystal Details
e1_0000-0.070c1_31.2926.3911.56000
e2_000-0.0800c2_26.3982.79.26000
e3_0-0.150.01000c3_11.569.2625.33000
d1_0000-10.640c4_0004.7900
d2_000-16.9500c5_00006.610
d3_1.94-2.50.43000c6_0000015.75
270
Crystal Name: maleic anhydride   Chemical Formula: C4H2O3   H-M Space Group: P212121


HD View 3D View Crystal Details
e1_0000.0400c1_11.529.65.58000
e2_00000.10c2_9.618.786.97000
e3_000000c3_5.586.9717.21000
d1_00022.5400c4_0001.6200
d2_000023.560c5_00004.240
d3_000002.71c6_000000.62
271
Crystal Name: urea   Chemical Formula: CH4N2O   H-M Space Group: P–421m


HD View 3D View Crystal Details
e1_0000.0800c1_14.5214.4712.42000
e2_00000.080c2_14.4714.5212.42000
e3_00000-0.03c3_12.4212.4270.41000
d1_0009.6700c4_0008.0900
d2_00009.660c5_00008.090
d3_00000-1.64c6_0000018.82
272
Crystal Name: poly-2,5-benzoxazole (ABPBO) and poly-2,6-benzothiazole (ABPBT)   Chemical Formula: C14H6N2O2   H-M Space Group: P1


HD View 3D View Crystal Details
e1_0000-0.110c1_0.26-3.126.430.11-0.85-3.03
e2_0000-0.080c2_-3.1213.47-1.20.05-0.47-1.9
e3_-0.04-0.01-0.35000c3_6.43-1.2410.18-0.321.06-0.21
d1_-5.61-1.060.15-4.53-24.317.37c4_0.110.05-0.32-2.140.2-0.05
d2_-4.5-0.830.12-2.42-16.845.36c5_-0.85-0.471.060.24.830.27
d3_-5.94-0.39-0.74-0.8-1.2813.11c6_-3.03-1.9-0.21-0.050.27-1.51
273
Crystal Name: Theoretical Structure*   Chemical Formula: NA*   H-M Space Group: P1


HD View 3D View Crystal Details
e1_000000c1_229.4114.2715.920.69-1.036.14
e2_000000c2_14.2724.3527.458.75-0.040.27
e3_000000c3_15.9227.4530.019.96-0.30.02
d1_-0.01-0.110.10.020.32-0.1c4_0.698.759.9610.58-0.02-0.17
d2_-0.010.35-0.320.030.02-0.08c5_-1.03-0.04-0.3-0.024.63.67
d3_-0.020.13-0.07-0.04-0.01-0.19c6_6.140.270.02-0.173.675.14
274
Crystal Name: 2-cyanopyrimidine   Chemical Formula: C5H3N3   H-M Space Group: P212121


HD View 3D View Crystal Details
e1_0000.0500c1_14.354.97.39000
e2_00000.030c2_4.927.449.48000
e3_000000.01c3_7.399.4812.25000
d1_0009.0300c4_0005.8700
d2_00007.250c5_00004.140
d3_00000-62.64c6_00000-0.19
275
Crystal Name: 6-Methylnicotinic acid   Chemical Formula: C7H7NO2   H-M Space Group: P21


HD View 3D View Crystal Details
e1_000-0.070-0.05c1_21.158.498.720-1.240
e2_-0.080.3-0.0100.070c2_8.4972.6720.20-7.990
e3_0000.050-0.09c3_8.7220.218.850-2.10
d1_00057.090108.33c4_00014.710-8.44
d2_-3.238.75-5.93024.110c5_-1.24-7.99-2.105.190
d3_00042.75069.11c6_000-8.4403.96