Anhydrous Actinide Starting Materials: Synthesis and Structural Characterization of [UCl<sub>4</sub>(Et<sub>2</sub>O)<sub>2</sub>], an Alternative Route to [UO<sub>2</sub>Cl<sub>2</sub>(THF)<sub>2</sub>]<sub>2</sub>, and Comments on the Synthesis of [ThCl<sub>4</sub>(dme)<sub>2</sub>]
Bibliographic record
Abstract
Abstract A new diethyl ether adduct of uranium tetrachloride, [UCl4(Et2O)2] (1), along with the previously reported mono‐etherate complex [UCl4(Et2O)]n (2), have been synthesized and characterized by powder X‐ray diffraction, elemental analysis, and in the case of 1, single crystal X‐ray diffraction. Additionally, reaction of anhydrous [UO2(OAc)2]n with HCl in Et2O/THF was found to afford the uranyl dichloride complex [UO2Cl2(THF)2]2 (3) in high purity and yield, providing an alternative and convenient entry point into anhydrous uranyl chemistry. Furthermore, comments are provided regarding the literature synthesis of [ThCl4(dme)2] via the reaction of [ThCl4(H2O)4] with Me3SiCl in dme, highlighting important considerations for the compound's preparation in good yield.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.006 | 0.002 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".