Structures by: Khorasani S.
Total: 72
C16H14N2O4S2,2(C14H9Br)
C16H14N2O4S2,2(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.6797(2)Å b=9.6861(2)Å c=11.3175(2)Å
α=93.2960(10)° β=109.1360(10)° γ=92.3010(10)°
0.952(C30H23BrN2O4S2),0.048(C16H14N2O4S2),1.048(C14H9Br)
0.952(C30H23BrN2O4S2),0.048(C16H14N2O4S2),1.048(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.5964(2)Å b=9.7097(2)Å c=11.6415(3)Å
α=94.7040(10)° β=111.769(2)° γ=91.3940(10)°
0.97(C30H23BrN2O4S2),0.03(C16H14N2O4S2),1.03(C14H9Br)
0.97(C30H23BrN2O4S2),0.03(C16H14N2O4S2),1.03(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.5964(2)Å b=9.7099(2)Å c=11.6456(3)Å
α=94.7050(10)° β=111.845(2)° γ=91.3910(10)°
0.912(C30H23BrN2O4S2),0.088(C16H14N2O4S2),1.088(C14H9Br)
0.912(C30H23BrN2O4S2),0.088(C16H14N2O4S2),1.088(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.5989(2)Å b=9.7109(3)Å c=11.6303(3)Å
α=94.6670(10)° β=111.698(2)° γ=91.4290(10)°
C30H23BrN2O4S2,C14H9Br
C30H23BrN2O4S2,C14H9Br
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=11.5732(6)Å b=12.7765(7)Å c=13.1918(7)Å
α=97.696(2)° β=108.460(2)° γ=99.643(2)°
0.34(C30H23BrN2O4S2),0.66(C16H14N2O4S2),1.66(C14H9Br)
0.34(C30H23BrN2O4S2),0.66(C16H14N2O4S2),1.66(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.6501(4)Å b=9.6910(4)Å c=11.4533(5)Å
α=93.968(3)° β=109.971(3)° γ=91.879(2)°
C30H23BrN2O4S2
C30H23BrN2O4S2
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=9.6864(5)Å b=8.4793(5)Å c=31.9276(18)Å
α=90° β=96.433(4)° γ=90°
0.978(C30H23BrN2O4S2),0.022(C16H14N2O4S2),1.022(C14H9Br)
0.978(C30H23BrN2O4S2),0.022(C16H14N2O4S2),1.022(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.5906(2)Å b=9.7077(2)Å c=11.6448(3)Å
α=94.7090(10)° β=111.858(2)° γ=91.3990(10)°
0.86(C30H23BrN2O4S2),0.14(C16H14N2O4S2),1.14(C14H9Br)
0.86(C30H23BrN2O4S2),0.14(C16H14N2O4S2),1.14(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.5997(2)Å b=9.7097(2)Å c=11.6134(3)Å
α=94.6020(10)° β=111.523(2)° γ=91.4720(10)°
0.652(C30H23BrN2O4S2),0.348(C16H14N2O4S2),1.348(C14H9Br)
0.652(C30H23BrN2O4S2),0.348(C16H14N2O4S2),1.348(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.6159(3)Å b=9.7052(3)Å c=11.5522(4)Å
α=94.355(3)° β=110.910(2)° γ=91.578(2)°
C30H23BrN2O4S2,C14H9Br
C30H23BrN2O4S2,C14H9Br
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.5966(2)Å b=9.7095(2)Å c=11.6614(2)Å
α=94.7500(10)° β=111.9980(10)° γ=91.3660(10)°
0.936(C30H23BrN2O4S2),0.064(C16H14N2O4S2),1.064(C14H9Br)
0.936(C30H23BrN2O4S2),0.064(C16H14N2O4S2),1.064(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.5953(3)Å b=9.7096(3)Å c=11.6335(4)Å
α=94.661(2)° β=111.729(2)° γ=91.425(2)°
C30H23BrN2O4S2,C14H9Br
C30H23BrN2O4S2,C14H9Br
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=11.5487(5)Å b=12.7694(5)Å c=13.1710(6)Å
α=97.689(2)° β=108.313(2)° γ=99.485(3)°
C30H23BrN2O4S2,C14H9Br
C30H23BrN2O4S2,C14H9Br
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.5791(2)Å b=9.7036(3)Å c=11.6537(3)Å
α=94.725(2)° β=111.977(2)° γ=91.443(2)°
C30H23BrN2O4S2,C14H9Br
C30H23BrN2O4S2,C14H9Br
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.5950(2)Å b=9.7070(3)Å c=11.6561(3)Å
α=94.7480(10)° β=111.956(2)° γ=91.3750(10)°
0.492(C30H23BrN2O4S2),0.508(C16H14N2O4S2),1.508(C14H9Br)
0.492(C30H23BrN2O4S2),0.508(C16H14N2O4S2),1.508(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.6160(3)Å b=9.6963(4)Å c=11.5069(4)Å
α=94.172(3)° β=110.426(2)° γ=91.735(2)°
0.746(C30H23BrN2O4S2),0.254(C16H14N2O4S2),1.254(C14H9Br)
0.746(C30H23BrN2O4S2),0.254(C16H14N2O4S2),1.254(C14H9Br)
Chemical communications (Cambridge, England) (2017) 53, 36 4969-4972
a=8.6120(3)Å b=9.7121(4)Å c=11.5828(3)Å
α=94.4700(10)° β=111.179(2)° γ=91.5500(10)°
C14H10N2O4S2,C14H9Br
C14H10N2O4S2,C14H9Br
CrystEngComm (2015) 17, 46 8933
a=12.8529(5)Å b=13.5669(4)Å c=14.6676(5)Å
α=90° β=107.7130(10)° γ=90°
0.094(C28H20BrN2O4S2),0.906(C14H10N2O4S2),0.906(C14H9Br)
0.094(C28H20BrN2O4S2),0.906(C14H10N2O4S2),0.906(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.8561(4)Å b=13.6180(4)Å c=14.6351(5)Å
α=90° β=107.9060(10)° γ=90°
0.201(C28H19BrN2O4S2),0.799(C14H10N2O4S2),0.799(C14H9Br)
0.201(C28H19BrN2O4S2),0.799(C14H10N2O4S2),0.799(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.8650(6)Å b=13.6783(6)Å c=14.6129(7)Å
α=90° β=108.152(2)° γ=90°
0.419(C28H19BrN2O4S2),0.581(C14H10N2O4S2),0.581(C14H9Br)
0.419(C28H19BrN2O4S2),0.581(C14H10N2O4S2),0.581(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.8605(14)Å b=13.7943(15)Å c=14.5372(16)Å
α=90° β=108.642(4)° γ=90°
0.294(C28H19BrN2O4S2),0.706(C14H10N2O4S2),0.706(C14H9Br)
0.294(C28H19BrN2O4S2),0.706(C14H10N2O4S2),0.706(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.8617(8)Å b=13.7077(8)Å c=14.5846(9)Å
α=90° β=108.297(2)° γ=90°
0.882(C28H19BrN2O4S2),0.118(C14H10N2O4S2),0.118(C14H9Br)
0.882(C28H19BrN2O4S2),0.118(C14H10N2O4S2),0.118(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.8049(10)Å b=14.1886(9)Å c=14.4999(11)Å
α=90° β=110.453(3)° γ=90°
0.804(C28H19BrN2O4S2),0.196(C14H10N2O4S2),0.196(C14H9Br)
0.804(C28H19BrN2O4S2),0.196(C14H10N2O4S2),0.196(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.8578(11)Å b=14.1427(12)Å c=14.4105(13)Å
α=90° β=110.053(4)° γ=90°
0.581(C28H19BrN2O4S2),0.419(C14H10N2O4S2),0.419(C14H9Br)
0.581(C28H19BrN2O4S2),0.419(C14H10N2O4S2),0.419(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.905(2)Å b=14.015(2)Å c=14.524(3)Å
α=90° β=109.180(4)° γ=90°
0.91(C28H19BrN2O4S2),0.09(C14H10N2O4S2),0.09(C14H9Br)
0.91(C28H19BrN2O4S2),0.09(C14H10N2O4S2),0.09(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.7386(12)Å b=14.1989(11)Å c=14.6254(12)Å
α=90° β=110.594(4)° γ=90°
0.934(C28H19BrN2O4S2),0.066(C14H10N2O4S2),0.066(C14H9Br)
0.934(C28H19BrN2O4S2),0.066(C14H10N2O4S2),0.066(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.6987(10)Å b=14.2111(11)Å c=14.6928(12)Å
α=90° β=110.648(3)° γ=90°
0.94(C28H19BrN2O4S2),0.06(C14H10N2O4S2),0.06(C14H9Br)
0.94(C28H19BrN2O4S2),0.06(C14H10N2O4S2),0.06(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.668(2)Å b=14.193(3)Å c=14.740(3)Å
α=90° β=110.608(5)° γ=90°
0.967(C28H19BrN2O4S2),0.033(C14H10N2O4S2),0.033(C14H9Br)
0.967(C28H19BrN2O4S2),0.033(C14H10N2O4S2),0.033(C14H9Br)
CrystEngComm (2015) 17, 46 8933
a=12.6830(16)Å b=14.2527(17)Å c=14.782(2)Å
α=90° β=110.713(4)° γ=90°
C28H19BrN2O4S2
C28H19BrN2O4S2
CrystEngComm (2015) 17, 46 8933
a=12.7053(8)Å b=23.1346(14)Å c=8.5162(5)Å
α=90° β=103.246(4)° γ=90°
C28H19BrN2O4S2
C28H19BrN2O4S2
CrystEngComm (2015) 17, 46 8933
a=12.6357(10)Å b=14.2062(11)Å c=14.7531(12)Å
α=90° β=110.689(4)° γ=90°
Cyclooctanaminium hydrogen succinate monohydrate
C8H18N,C4H5O4,H2O
Acta Crystallographica Section E (2012) 68, 4 o1204
a=8.4221(6)Å b=14.3704(9)Å c=23.7031(16)Å
α=90.00° β=90.00° γ=90.00°
Hexakis(propylammonium) benzene-1,2,4,5-tetracarboxylate 2,5-dicarboxybenzene-1,4-carboxylate tetrahydrate
6(C3H10N),C10H2O84,C10H4O82,4(H2O)
Acta Crystallographica Section E (2012) 68, 9 o2807
a=9.9826(2)Å b=11.0994(2)Å c=12.4453(2)Å
α=107.4610(10)° β=90.0620(10)° γ=105.7210(10)°
3-Hydroxy-1-(4-methoxybenzyl)piperidin-2-one
C13H17NO3
Acta Crystallographica Section E (2013) 69, 1 o51
a=12.980(3)Å b=7.6143(17)Å c=12.189(3)Å
α=90.00° β=90.497(5)° γ=90.00°
(<i>Z</i>)-Ethyl 2-hydroxy-4-oxo-4-(1,4,5,6,8-pentamethoxynaphthalen-2-yl)but- 2-enoate
C21H24O9
Acta Crystallographica Section E (2013) 69, 1 o54-o55
a=6.8019(4)Å b=12.3042(6)Å c=24.3971(12)Å
α=100.002(4)° β=93.080(4)° γ=98.748(4)°
(+-)-3-Benzyloxy-1-(4-methoxybenzyl)piperidine-2-thione
C20H23NO2S
Acta Crystallographica Section E (2013) 69, 1 o21
a=18.371(3)Å b=10.4844(15)Å c=18.467(3)Å
α=90.00° β=90.00° γ=90.00°
1-(2-Hydroxy-4,5-dimethoxyphenyl)ethanone
C10H12O4
Acta Crystallographica Section E (2013) 69, 1 o139
a=19.1740(12)Å b=5.5026(3)Å c=8.9956(5)Å
α=90.00° β=90.00° γ=90.00°
2-(2-carboxyethyl)-1,3-dioxoisoindoline-5,6-dicarboxylic acid methanol monosolvate
C13H9NO8,CH4O
Acta Crystallographica Section E (2012) 68, 1 o121
a=8.7830(3)Å b=9.7262(3)Å c=9.9157(3)Å
α=66.164(2)° β=72.830(2)° γ=77.926(2)°
1-succinimidoanthracene
C18H13NO2
Acta Crystallographica Section E (2012) 68, 5 o1503
a=18.4179(9)Å b=5.7697(4)Å c=12.4403(6)Å
α=90.00° β=90.00° γ=90.00°
3-Methyl-1-tosyl-1<i>H</i>-indole-2-carbaldehyde
C17H15NO3S
Acta Crystallographica Section E (2013) 69, 2 o219
a=8.4276(2)Å b=13.0126(3)Å c=14.2522(4)Å
α=79.968(2)° β=79.794(2)° γ=83.505(2)°
0.95(C31H26N2O4S2),0.05(C16H14N2O4S2),0.05(C15H12)
0.95(C31H26N2O4S2),0.05(C16H14N2O4S2),0.05(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.519(5)Å b=8.898(5)Å c=10.122(5)Å
α=76.022(5)° β=86.781(5)° γ=83.761(5)°
0.96(C31H26N2O4S2),0.04(C16H14N2O4S2),0.04(C15H12)
0.96(C31H26N2O4S2),0.04(C16H14N2O4S2),0.04(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.5078(2)Å b=8.8880(3)Å c=10.1325(3)Å
α=76.0290(10)° β=86.7840(10)° γ=83.7790(10)°
0.88(C31H26N2O4S2),0.12(C16H14N2O4S2),0.12(C15H12)
0.88(C31H26N2O4S2),0.12(C16H14N2O4S2),0.12(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.4994(4)Å b=8.8416(4)Å c=10.1705(5)Å
α=76.240(2)° β=86.882(2)° γ=84.146(2)°
0.57(C31H26N2O4S2),0.43(C16H14N2O4S2),0.43(C15H12)
0.57(C31H26N2O4S2),0.43(C16H14N2O4S2),0.43(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.4528(3)Å b=8.6771(3)Å c=10.3160(4)Å
α=77.061(2)° β=86.974(2)° γ=85.713(2)°
0.95(C31H26N2O4S2),0.05(C16H14N2O4S2),0.05(C15H12)
0.95(C31H26N2O4S2),0.05(C16H14N2O4S2),0.05(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.5206(4)Å b=8.8938(4)Å c=10.1311(6)Å
α=76.016(2)° β=86.818(3)° γ=83.775(2)°
0.88(C31H26N2O4S2),0.12(C16H14N2O4S2),0.12(C15H12)
0.88(C31H26N2O4S2),0.12(C16H14N2O4S2),0.12(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.4924(3)Å b=8.8522(4)Å c=10.1725(5)Å
α=76.232(2)° β=86.916(2)° γ=84.1210(10)°
0.76(C31H26N2O4S2),0.24(C16H14N2O4S2),0.24(C15H12)
0.76(C31H26N2O4S2),0.24(C16H14N2O4S2),0.24(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.4793(2)Å b=8.7829(3)Å c=10.2316(3)Å
α=76.593(2)° β=86.968(2)° γ=84.781(2)°
0.91(C31H26N2O4S2),0.09(C16H14N2O4S2),0.09(C15H12)
0.91(C31H26N2O4S2),0.09(C16H14N2O4S2),0.09(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.5049(4)Å b=8.8598(4)Å c=10.1573(6)Å
α=76.199(2)° β=86.886(3)° γ=83.941(2)°
0.96(C31H26N2O4S2),0.04(C16H14N2O4S2),0.04(C15H12)
0.96(C31H26N2O4S2),0.04(C16H14N2O4S2),0.04(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.5175(3)Å b=8.8851(3)Å c=10.1345(4)Å
α=76.054(2)° β=86.817(2)° γ=83.763(2)°
0.26(C31H26N2O4S2),0.74(C16H14N2O4S2),0.74(C15H12)
0.26(C31H26N2O4S2),0.74(C16H14N2O4S2),0.74(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.4235(4)Å b=8.5698(5)Å c=10.3930(5)Å
α=77.478(2)° β=86.938(2)° γ=86.790(2)°
0.12(C31H26N2O4S2),0.88(C16H14N2O4S2),0.88(C15H12)
0.12(C31H26N2O4S2),0.88(C16H14N2O4S2),0.88(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.4063(4)Å b=8.5132(5)Å c=10.4515(6)Å
α=77.693(2)° β=86.876(2)° γ=87.493(2)°
0.95(C31H26N2O4S2),0.05(C16H14N2O4S2),0.05(C15H12)
0.95(C31H26N2O4S2),0.05(C16H14N2O4S2),0.05(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.5190(7)Å b=8.8836(8)Å c=10.1342(9)Å
α=76.071(3)° β=86.803(3)° γ=83.784(3)°
C16H14N2O4S2,C15H12
C16H14N2O4S2,C15H12
Crystal Growth & Design (2013) 13, 12 5499
a=7.3823(3)Å b=8.4674(3)Å c=10.4894(4)Å
α=77.8860(10)° β=86.838(2)° γ=87.937(2)°
C34H48N2O4
C34H48N2O4
Crystal Growth & Design (2012) 12, 12 5908
a=19.5309(7)Å b=10.1243(4)Å c=17.5617(6)Å
α=90.00° β=121.9510(10)° γ=90.00°
C34H48N2O4
C34H48N2O4
Crystal Growth & Design (2012) 12, 12 5908
a=8.1128(9)Å b=11.0482(11)Å c=17.788(2)Å
α=89.267(4)° β=79.228(4)° γ=78.377(4)°
C22H14N2O4S2
C22H14N2O4S2
Crystal Growth & Design (2019) 20, 1 291
a=15.2581(5)Å b=5.4371(2)Å c=22.7506(7)Å
α=90° β=92.0780(10)° γ=90°
C22H14N2O4S2,C14H10
C22H14N2O4S2,C14H10
Crystal Growth & Design (2019) 20, 1 291
a=8.2671(3)Å b=5.6879(2)Å c=29.3755(13)Å
α=90° β=93.9010(10)° γ=90°
C22H14N2O4S2,C15H10O
C22H14N2O4S2,C15H10O
Crystal Growth & Design (2019) 20, 1 291
a=8.1610(6)Å b=7.3167(5)Å c=25.7134(14)Å
α=90° β=98.197(3)° γ=90°
C22H14N2O4S2,C14H9Br
C22H14N2O4S2,C14H9Br
Crystal Growth & Design (2019) 20, 1 291
a=9.7763(3)Å b=11.4782(4)Å c=13.9099(4)Å
α=108.447(2)° β=97.354(2)° γ=90.644(2)°
C22H14N2O4S2,C14H9Br
C22H14N2O4S2,C14H9Br
Crystal Growth & Design (2019) 20, 1 291
a=17.4089(5)Å b=7.3320(2)Å c=24.3958(7)Å
α=90° β=102.0900(10)° γ=90°
C36H24N2O4S2
C36H24N2O4S2
Crystal Growth & Design (2019) 20, 1 291
a=13.4924(17)Å b=8.1242(9)Å c=26.524(3)Å
α=90° β=90.202(10)° γ=90°
C22H14N2O4S2,C16H12
C22H14N2O4S2,C16H12
Crystal Growth & Design (2019) 20, 1 291
a=7.3991(2)Å b=12.6798(3)Å c=17.2264(5)Å
α=101.818(2)° β=100.205(2)° γ=99.579(2)°
C37H26N2O4S2
C37H26N2O4S2
Crystal Growth & Design (2019) 20, 1 291
a=13.8166(6)Å b=8.1675(3)Å c=26.5860(10)Å
α=90° β=90.411(2)° γ=90°
C36H24N2O4S2
C36H24N2O4S2
Crystal Growth & Design (2019) 20, 1 291
a=11.618(4)Å b=28.927(9)Å c=8.462(3)Å
α=90° β=90° γ=90°
C37H24N2O5S2
C37H24N2O5S2
Crystal Growth & Design (2019) 20, 1 291
a=17.1500(10)Å b=13.8999(10)Å c=13.3182(8)Å
α=90° β=110.989(3)° γ=90°
C36H23BrN2O4S2
C36H23BrN2O4S2
Crystal Growth & Design (2019) 20, 1 291
a=29.953(3)Å b=22.960(3)Å c=8.5590(10)Å
α=90° β=93.217(8)° γ=90°
C38H26N2O4S2
C38H26N2O4S2
Crystal Growth & Design (2019) 20, 1 291
a=18.9839(8)Å b=18.9144(8)Å c=8.4209(4)Å
α=90° β=99.386(2)° γ=90°
C28H20BrN2O4S2,CH2Cl2
C28H20BrN2O4S2,CH2Cl2
CrystEngComm (2015) 17, 46 8933
a=8.2573(9)Å b=12.5878(13)Å c=14.5411(16)Å
α=110.120(6)° β=90.583(7)° γ=99.971(6)°
C31H26N2O4S2
C31H26N2O4S2
Crystal Growth & Design (2013) 13, 12 5499
a=9.6723(4)Å b=8.5785(4)Å c=31.5474(14)Å
α=90.00° β=96.531(2)° γ=90.00°
0.23(C31H26N2O4S2),0.77(C16H14N2O4S2),0.77(C15H12)
0.23(C31H26N2O4S2),0.77(C16H14N2O4S2),0.77(C15H12)
Crystal Growth & Design (2013) 13, 12 5499
a=7.4171(2)Å b=8.5537(3)Å c=10.4144(3)Å
α=77.5470(10)° β=86.9280(10)° γ=87.0050(10)°
C22H14N2O4S2,C15H12
C22H14N2O4S2,C15H12
Crystal Growth & Design (2019) 20, 1 291
a=5.7858(3)Å b=8.6281(4)Å c=15.0315(7)Å
α=102.014(2)° β=92.900(2)° γ=92.926(2)°
C22H14N2O4S2,C10H8
C22H14N2O4S2,C10H8
Crystal Growth & Design (2019) 20, 1 291
a=25.9145(6)Å b=6.79710(10)Å c=17.1675(4)Å
α=90° β=118.2840(10)° γ=90°