Yam Code

New Paste Browse

https://www.selleckchem.com/products/4-Methylumbelliferone(4-MU).html In the title centrosymmetric cluster compound, hexa-kis-(μ2-1,1,1,3,3,3-hexa-fluoro-propan-2-olato)octa-kis-(1,1,1,3,3,3-hexa-fluoro-propan-2-olato)octa-μ2-hydroxido-di-μ4-oxido-di-μ3-oxido-deca-aluminium, [Al10(C3HF6O)14(OH)8O4] (C42H22Al10F84O26), there is a central μ4-OAl4 moiety, which has six edges of which three contain μ(O)-1,1,1,3,3,3-hexa-fluoro-propan-2-olate (L) ligands and two contain μ-OH groups each bridging two Al atoms along an edge. The sixth edge is occupied by a group containing a fifth aluminium atom [bis-μ(OH)-, μ3(O)-AlL]. This last μ3(O) group generates a centrosymmetric Al2O2 dimer, thus the μ3(O) atom is linked to two Al atoms in the asymmetric unit as well as a third Al atom through a center of inversion. Three of the hexa-fluoro-propyl groups of the C3HF6O- ligands are disordered and each was refined with two conformations with occupancies of 0.770 (3)/0.230 (3), 0.772 (3)/0.228 (3) and 0.775 (3)/0.225 (3). The five unique Al centers have coordination numbers varying from four to six with bond angles that show considerable distortions from regular geometry for the four-coordinate atom, τ4' = 0.886, while three Al atoms are five-coordinate (τ5 values = 0.098, 1.028, and 0.338) and one is distorted six-coordinate with O-Al-O bond angles ranging from 74.22 (9) to 171.59 (12)°. The geometry about the central O atom in the OAl4 block is significantly distorted tetra-hedral (τ4' = 0.630) with Al-O-Al angles ranging from 95.50 (9) to 147.74 (13)°. The extended structure features numerous O-H⋯O, O-H⋯F, C-H⋯O and C-H⋯F hydrogen bonds and short F⋯F contacts.Recently, most countries have entered the outbreak period of the novel coronavirus epidemic. This sudden outbreak has caused a huge impact on the global economy, which has intensified the division of globalization and the recession of the global economy. Although the epidemic situation in China has gradually stabilized, the sev

Paste Settings

Paste Title : [Optional]

Paste Folder : [Optional]

Syntax Highlighting : [Optional]

Paste Expiration : [Optional]

Paste Status : [Optional]

Password : [Optional]

Description: [Optional]

Tags: [Optional]

Encrypt Paste (?)

You are currently not logged in, this means you can not edit or delete anything you paste. Sign Up or Login

Paste Settings

Site Languages