Crystal structure of salmeterol xinafoate form I (Serevent®Diskus®), (C25H37NO4)(C11H8O3)

2015 ◽  
Vol 30 (4) ◽  
pp. 333-339 ◽  
Author(s):  
James A. Kaduk ◽  
Kai Zhong ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Powder Diffraction ◽  
Density Functional ◽  
Powder Diffraction Data ◽  
Powder Diffraction File ◽  
X Ray ◽  
Salmeterol Xinafoate ◽  
Structure Solution

The crystal structure of salmeterol xinafoate has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional techniques. Salmeterol xinafoate crystallizes in space group P−1 (#2) with a = 9.173 89(13), b = 9.483 79(14), c = 21.3666(4) Å, α = 82.2646(13), β = 85.2531(12), γ = 62.1565(11)°, V = 1628.37(5) Å3, and Z = 2. Key to the structure solution was linking the two fragments by a Li atom along the expected N–H···O hydrogen bond. The salmeterol cation and xinafoate anion are linked by N–H···O and O–H···O hydrogen bonds, interactions which cause the salmeterol to adjust its conformation. The hydrogen bonds result in complex chains along the b-axis. The powder pattern is included in the Powder Diffraction File™ as entry 00-065-1430.

Crystal structure of bretylium tosylate (Bretylol®), C18H24BrNO3S

2018 ◽  
Vol 33 (4) ◽  
pp. 298-302
Author(s):  
Austin M. Wheatley ◽  
James A. Kaduk ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Powder Diffraction ◽  
Density Functional ◽  
Double Layers ◽  
Powder Diffraction Data ◽  
Powder Diffraction File ◽  
X Ray ◽  
Polar Interactions ◽  
Normal Hydrogen

The crystal structure of bretylium tosylate has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional techniques. Bretylium tosylate crystallizes in space group C2/c (#15) with a = 32.6238(4), b = 12.40353(14), c = 9.93864(12) Å, β = 101.4676(10), V = 3941.39(5) Å3, and Z = 8. The sample exhibited visible decomposition in the X-ray beam. The unusual displacement ellipsoid of the Br atom probably indicates that the decomposition in the beam involves the Br atom. The crystal structure can be viewed as layered parallel to the bc plane. The layers are double, the center consisting of the cation/anion polar interactions and the outer surface of the double layers consists of hydrocarbon interactions. In the absence of normal hydrogen bond donors, the only hydrogen bonds in the bretylium tosylate structure are C–H…O hydrogen bonds. The powder pattern has been submitted to ICDD® for inclusion in the Powder Diffraction File™.

Crystal structure of prednicarbate, C27H36O8

2019 ◽  
Vol 34 (4) ◽  
pp. 368-373 ◽  
Author(s):  
Zachary R. Butler ◽  
James A. Kaduk ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Powder Diffraction ◽  
Density Functional ◽  
Ring System ◽  
Hydroxyl Group ◽  
Powder Diffraction Data ◽  
Hydrogen Bond Donor ◽  
Powder Diffraction File ◽  
X Ray

The crystal structure of prednicarbate has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional techniques. Prednicarbate crystallizes in space group P212121 (#19) with a = 7.69990(3), b = 10.75725(3), c = 31.36008(11) Å, V = 2597.55(1) Å3, and Z = 4. In the crystal structure the long axis of the steroid ring system lies roughly parallel to the c-axis. The oxygenated side chains are orientated roughly perpendicular to the steroid ring system and are adjacent to each other, parallel to the ab-plane. The only traditional hydrogen bond donor in the prednicarbate molecule is the hydroxyl group O32–H33, but this does not participate in an O–H···O hydrogen bond. The nearest oxygen atoms to O32 are symmetry-related O32 at 4.495 Å, precluding the expected O–H···O hydrogen bond. The powder pattern has been submitted to ICDD® for inclusion in the Powder Diffraction File™.

Crystal structure of brigatinib Form A (Alunbrig®), C29H39ClN7O2P

2021 ◽  
pp. 1-8
Author(s):  
Ryan L. Hodge ◽  
James A. Kaduk ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Powder Diffraction ◽  
Density Functional ◽  
Phosphoryl Group ◽  
Powder Diffraction Data ◽  
Factor Solution ◽  
Powder Diffraction File ◽  
Functional Theory ◽  
X Ray ◽  
Structure Solution

The crystal structure of brigatinib Form A has been solved and refined using synchrotron X-ray powder diffraction data and optimized using density functional theory techniques. Brigatinib Form A crystallizes in space group P-1 (#2) with a = 9.59616(20), b = 10.9351(3), c = 14.9913(6) Å, α = 76.1210(13), β = 79.9082(11), γ = 74.0802(6)°, V = 1458.497(15) Å3, and Z = 2. Structure solution was complicated by the lowest cost factor solution having an unreasonable conformation of the dimethylphosphoryl group. The second-best structure yielded a better refinement. The crystal structure is characterized by alternating layers of aliphatic and aromatic portions of the molecules along the b-axis. Strong N–H⋯N hydrogen bonds link the molecules into pairs, with a graph set R2,2(8). There is a strong intramolecular N–H⋯O hydrogen bond to the phosphoryl group, which determines the orientation of this group. The powder pattern has been submitted to ICDD® for inclusion in the Powder Diffraction File™ (PDF®).

Crystal structure of metolazone, C16H16ClN3O3S

2019 ◽  
Vol 34 (4) ◽  
pp. 361-367 ◽  
Author(s):  
James A. Kaduk ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Powder Diffraction ◽  
Density Functional ◽  
Stacking Faults ◽  
Powder Diffraction Data ◽  
Hydrogen Bond Donor ◽  
Powder Diffraction File ◽  
X Ray ◽  
Ring Nitrogen

The crystal structure of metolazone has been solved and refined using synchrotron X-ray powder diffraction data and optimized using density functional techniques. Metolazone crystallizes in space group P-1 (#2) with a = 8.1976(5), b = 14.4615(69), c = 16.0993(86) Å, α = 115.009(18), β = 90.096(7), γ = 106.264(4)°, V = 1644.52(9) Å3, and Z = 4. The broad (02-1) peak at 3.42° 2θ indicates stacking faults along this direction. The crystal structure consists of alternating polar and hydrocarbon layers parallel to the ac-plane. Only one of the sulfonamide groups acts as a hydrogen bond donor. Both ring nitrogen atoms act as hydrogen bond donors, but one forms an N–H···N hydrogen bond, while the other participates in an N–H···O bond. The powder pattern has been submitted to ICDD® for inclusion in the Powder Diffraction File™, to replace entry 00-066-1624.

Crystal structure of choline fenofibrate (Trilipix®), (C5H14NO) (C17H14ClO4)

2016 ◽  
Vol 31 (2) ◽  
pp. 142-148
Author(s):  
James A. Kaduk ◽  
Kai Zhong ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Powder Diffraction ◽  
Density Functional ◽  
Hydroxyl Group ◽  
Strong Hydrogen Bond ◽  
Carboxylate Group ◽  
Powder Diffraction Data ◽  
Powder Diffraction File ◽  
X Ray

The crystal structure of choline fenofibrate has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional techniques. Choline fenofibrate crystallizes in space group Pbca (#61) with a = 12.341 03(2), b = 28.568 70(6), c = 12.025 62(2) Å, V = 4239.84(1) Å3, and Z = 8. The hydroxyl group of the choline anion makes a strong hydrogen bond to the ionized carboxylate group of the fenofibrate anion. Together with C–H···O hydrogen bonds, these link the cations and anions into layers parallel to the ac-plane. The powder pattern has been submitted to ICDD for inclusion in the Powder Diffraction File™.

Crystal structure of tezacaftor Form A, C26H27F3N2O6

2021 ◽  
Vol 36 (1) ◽  
pp. 56-62
Author(s):  
James A. Kaduk ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Density Functional ◽  
Van Der Waals ◽  
Van Der Waals Interactions ◽  
Powder Diffraction Data ◽  
Powder Diffraction File ◽  
X Ray

The crystal structure of tezacaftor Form A has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional techniques. Tezacaftor Form A crystallizes in space group C2 (#5) with a = 21.05142(6), b = 6.60851(2), c = 17.76032(5) Å, β = 95.8255(2)°, V = 2458.027(7) Å3, and Z = 4. The crystal structure is dominated by van der Waals interactions. O–H⋯O hydrogen bonds link the molecules in chains along the b-axis, and there are a variety of C–H⋯O hydrogen bonds, both intra- and intermolecular. The powder pattern has been submitted to ICDD® for inclusion in the Powder Diffraction File™ (PDF®).

Powder X-ray diffraction of pazopanib hydrochloride Form 1, C21H24N7O2SCl

2021 ◽  
pp. 1-3
Author(s):  
James A. Kaduk ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Powder Diffraction ◽  
Density Functional ◽  
Lattice Energy ◽  
Powder Diffraction Data ◽  
X Ray Diffraction ◽  
Powder Diffraction File ◽  
Functional Theory ◽  
X Ray

The crystal structure of pazopanib hydrochloride Form 1 has been refined using synchrotron X-ray powder diffraction data and optimized using density functional theory techniques. Pazopanib hydrochloride crystallizes in space group P-1 (#2) with a = 8.45008(6), b = 8.71310(12), c = 16.05489(35) Å, α = 79.5996(9), β = 86.4784(5), γ = 87.3764(3)°, V = 1159.724(9) Å3, and Z = 2. The crystal structure is essentially identical to that of CSD Refcode CEVYEK. There are four strong N–H⋯Cl hydrogen bonds to the chloride anion. Several additional weaker N–H⋯Cl and C–H⋯Cl hydrogen bonds are also present. A variety of C–H⋯O, C–H⋯N, and N–H⋯S hydrogen bonds also contribute to the lattice energy. The powder pattern has been submitted to ICDD® for inclusion in the Powder Diffraction File™.

Crystal structure of bisoprolol fumarate Form I, (C18H32NO4) (C4H2O4)0.5

2019 ◽  
Vol 35 (1) ◽  
pp. 34-40
Author(s):  
James A. Kaduk ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Density Functional ◽  
Side Chain ◽  
Powder Diffraction Data ◽  
Powder Diffraction File ◽  
Space Group ◽  
X Ray

The crystal structure of bisoprolol fumarate Form I has been solved and refined using synchrotron X-ray powder diffraction data and optimized using density functional techniques. Bisoprolol fumarate Form I crystallizes in space group P-1 (#2) with a = 8.165 70(5) Å, b = 8.516 39(12) Å, c = 16.751 79(18) Å, α = 89.142(1)°, β = 78.155(1)°, γ = 81.763(1)°, V = 1128.265(10) Å3, and Z = 2. The neutral side chain of the bisoprolol cation is probably disordered. The cation and anion are linked by N–H⋯O and O–H⋯O hydrogen bonds. The cations are also linked by N–H⋯O hydrogen bonds. The result is alternating layers of hydrophilic and hydrophobic layers parallel to the ab-plane. The density of the structure is relatively low at 1.130 g cm−3, but there are no obvious voids in the structure. The powder pattern is included in the Powder Diffraction File™ as entry 00-066-1625.

Crystal structure of eltrombopag olamine Form I, (C2H8NO)2 (C25H20N4O4)

2021 ◽  
pp. 1-7
Author(s):  
James A. Kaduk ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Density Functional ◽  
Van Der Waals Interactions ◽  
Powder Diffraction Data ◽  
Powder Diffraction File ◽  
X Ray ◽  
The Third

The crystal structure of eltrombopag olamine Form I has been solved and refined using synchrotron X-ray powder diffraction data and optimized using density functional techniques. Eltrombopag olamine crystallizes in the space group P21/n (#14) with a = 17.65884(13), b = 7.55980(2), c = 22.02908(16) Å, β = 105.8749(4)°, V = 2828.665(11) Å3, and Z = 4. The crystal structure is dominated by columns of hydrogen-bonded cations and anions along the short b-axis. van der Waals interactions bind the columns together. Two H atoms of each ammonium group in the ethanolammonium cations participate in strong hydrogen bonds, and the third H forms weaker bifurcated H-bonds. The powder pattern has been submitted to ICDD® for inclusion in the Powder Diffraction File™ (PDF®).

Crystal structure of edoxaban tosylate monohydrate Form I, (C24H31ClN7O4S)(C7H7O3S)(H2O)

2021 ◽  
pp. 1-7
Author(s):  
James A. Kaduk ◽  
Amy M. Gindhart ◽  
Thomas N. Blanton
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Powder Diffraction ◽  
Density Functional ◽  
Water Molecules ◽  
Powder Diffraction Data ◽  
Powder Diffraction File ◽  
X Ray ◽  
Protonated Nitrogen Atom ◽  
Solid State Conformation

The crystal structure of edoxaban tosylate monohydrate has been solved and refined using synchrotron X-ray powder diffraction data, and optimized using density functional techniques. Edoxaban tosylate monohydrate crystallizes in space group P21 (#4) with a = 7.55097(2), b = 7.09010(2), c = 32.80420(21) Å, β = 96.6720(3)°, V = 1744.348(6) Å3, and Z = 2. The crystal structure consists of alternating layers of edoxaban cations and tosylate anions along the c-axis. The water molecules lie near the sulfonate end of the tosylate anions. The solid-state conformation of the edoxaban cation is determined by intermolecular interactions. The protonated nitrogen atom forms a strong N–H⋯O hydrogen bond to one of the tosylate oxygens. Only one of the water molecule hydrogens acts as a donor in an O–H⋯O hydrogen bond. The tosylate oxygens act as acceptors in a number of C–H⋯O hydrogen bonds. The powder pattern has been submitted to ICDD® for inclusion in the Powder Diffraction File™.

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