Desilication of TS-1 zeolite for the oxidation of bulky molecules

A series of modified TS-1 samples have been produced by desilication of the original TS-1 (4 wt.% Ti) using a chemical treatment with NaOH. Desilicated TS-1 zeolites exhibit a large BET surface area together with a well-developed mesoporosity. The hierarchical catalysts from desilication of TS-1 zeolite show a good catalytic activity for the oxidation of small molecules and a significantly higher activity for the oxidation of bulky molecules.

An Acyl-NHC Osmium Cooperative System: Coordination of Small Molecules and Heterolytic B–H and O–H Bond Activation

The hexahydride complex OsH6(PiPr3)2 (1) activates the C–OMe bond of 1-(2-methoxy-2-oxoethyl)-3-methylimidazolium chloride (2), in addition to promoting the direct metalation of the imidazolium group, to afford a five-coordinate OsCl(acyl-NHC)(PiPr3)2 (3) compound. The latter coordinates carbon monoxide, oxygen, and molecular hydrogen to give the corresponding carbonyl (4), dioxygen (5), and dihydrogen (6) derivatives. Complex 3 also promotes the heterolytic bond activation of pinacolborane (HBpin), using the acyl oxygen atom as a pendant Lewis base. The hydride ligand and the Bpin substituent of the Fischer-type carbene of the resulting complex 7 activate the O–H bond of alcohols and water. As a consequence, complex 3 is a metal ligand cooperating catalyst for the generation of molecular hydrogen, by means of both the alcoholysis and hydrolysis of pinacolborane, via the intermediates 7 and 6.

Effect of Cyclic Topology on Charge-Transfer Properties of Organic Molecular Semiconductors: The Case of Cycloparaphenylene Molecules

We have studied the role played by cyclic topology on charge-transfer properties of recently synthesized π -conjugated molecules, namely the set of [n]cycloparaphenylene compounds, with n the number of phenylene rings forming the curved nanoring. We estimate the charge-transfer rates for holes and electrons migration within the array of molecules in their crystalline state. The theoretical calculations suggest that increasing the size of the system would help to obtain higher hole and electron charge-transfer rates and that these materials might show an ambipolar behavior in real samples, independently of the different mode of packing followed by the [6]cycloparaphenylene and [12]cycloparaphenylene cases studied.

Kitāb Ghāyat al-maghnam fī al-ism al-aʻẓam / lil-Shaykh al-Imām al-ʻĀlim al-Rabbānī ʻAlī ibn Muḥammad ibn ʻAbd al-ʻAzīz ibn Fattūḥ ibn al-Durayhim : manuscript, undated

بسم الله الرحمن الرحيم اشرف نور الله وظهر كلام الله ولمب امر الله وبعد حلم الله ... :Incipit

Hādhihi risālat al-ʻIqd al-thamīn fī sharḥ al-ḥadīth al-musalsal bi-al-Dimashqīyīn / taʼlīf al-Shaykh al-Imām al-ʻĀlim al-ʻĀmil al-Shaykh Ismāʻīl al-ʻAjlūnī : manuscript, [1749 or 1750]

Ownership statements on f. 1r signed ʻAlī al-ʻImādī, 1175 AH [1761 or 62 AD]; Ḥāmid al-Bakrī, 1192 AH [1178-9 AD]; Muḥammad ibn Saʻīd ibn Amīn al-Munayyir (or: al-Munīr), Jumādá al-Thānī 1243 [1827-8]. On fly leaf [1]: Muḥammad Saʻīd ... al-Ḥusaynī al-Dimashqī, Rabīʻ al-Awwal [1]282 [1865]; Muḥammad Abū al-... al-Ḥusaynī al-..., 17 Jumādá al-ūlá 1317 [1899];.

Hādhihi Ḥawāshī ʻalá Sharḥ al-Risālah al-waḍʻīyah al-ʻAḍudīyah / li-shaykhinā al-Shaykh Ismāʻīl al-ʻAjlūnī : manuscript, undated

Written in one column, 19 lines per page, in black.

Hādhihi risālat Iḍāʼat al-badrayn fī tarjamat al-Shaykhayn / lil-ʻAllāmah Sayyidī al-Shaykh Ismāʻīl al-ʻAjlūnī. manuscript, undated

Holograph copy. f. 61r: "hādhihi bi-khaṭṭ al-muʼallif raḥimahu allāh."

Kitāb al-ʻIqd al-jawhar al-thamīn fī arbaʻīn ḥadīthan min aḥādīth Sayyid al-Mursalīn / taʼlīf Khātimat al-muḥaddithīn al-Shaykh Ismāʻīl al-ʻAjlūnī al-Jarrāḥī manuscript, 1900

Copy completed on 22 Dhū al-Qaʻdah 1317 [March 24, 1900] in the hand of Aḥmad Fahmī al-ʻAṭṭār al-Dimashqī al-Shāfiʻī "naqlan ʻan nuskhat al-Kuzbarī al-Kabīr."

Hādhihī al-risālah Naṣīḥat al-ikhwān fī ṣawm Rajab wa-Shaʻbān wa-Ramaḍān / taʼlīf al-Shaykh al-ʻĀlim al-ʻĀllāmah al-ʻUmdah al-Fahhāmah al-Shaykh Ismāʻīl al-Jarrāḥī al-ʻAjlūnī : manuscript, undated

Holograph copy.

Hādhā kitāb ʻIqd al-jawhar al-thamīn fī arbaʻīn ḥadīthan min aḥādīth Sayyid al-mursalīn jamʻ al-Shaykh al-ʻAllāmah al-Imām muḥaddith Bilād al-Shām Ismāʻīl al-Jarrāḥī al-shahīr bi-al-ʻAjlūnī : manuscript, 1849

Written in one column, 19 lines per page, in black rubricated in red.

al- Durr al-munaẓẓam fī sharḥ al-ism al-aʻẓam : manuscript, undated

Written in one column, 20 lines per page, in black rubricated in red. Text framed within double red lines and each line framed within a red line.

Polar molecules /

Includes index.