24小时热门版块排行榜    

北京石油化工学院2026年研究生招生接收调剂公告
查看: 1202  |  回复: 7
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

coolrainbow

木虫 (著名写手)

未来国家冻凉

[交流] 纯计算不仅可以发JACS,还可以发Science 已有6人参与

A Paramagnetic Bonding Mechanism for Diatomics in Strong Magnetic Fields



Kai K. Lange, E. I. Tellgren, M. R. Hoffmann and T. Helgaker Science 2012, 337, 327 (Paywall)

A new bonding mechanism
As chemists we are familiar with two types of strong bonds occurring between atoms, covalent and ionic. This paper shows that when very strong magnetic fields (of the order of 105 T) are applied, a third bonding mechanism arrises. Helgaker and co-workers term this perpendicular paramagnetic bonding.


Binding triplet H2
Whilst previous Hartree-Fock calculations have shown that the lowest triplet state of H2 becomes bound in strong magnetic fields, this investigation uses the recently developed LONDON code to demonstrate the same phenomena at the Full-CI level. Similar calculations (again, with a very strong magnetic field) on the triplet state of He2 show a considerable strengthening of the interaction between the constituent atoms.

The nature of this bonding
By examining the behaviour of the molecular orbitals under different orientations relative to the external magnetic field, the authors note a stabilisation of antibonding orbitals in the perpendicular orientation, leading to a new type of bonding interaction. Although the potential of a new chemical bonding mechanism is undoubtably exciting, the magnetic fields required are beyond those that can be currently generated in a lab. However, such fields are present on some stellar objects and the findings of this paper are likely to aid in the spectroscopy of such bodies.
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

技术博客:http://hi.baidu.com/coolrainbow/blog
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

匿名

用户注销 (正式写手)


小木虫: 金币+0.5, 给个红包,谢谢回帖
本帖仅楼主可见
7楼2012-08-06 10:46:08
已阅   申请QC强帖   回复此楼   编辑   查看我的主页
查看全部 8 个回答

spit

木虫 (小有名气)


小木虫: 金币+0.5, 给个红包,谢谢回帖
也有实验吧 加强磁场实验 我没看太懂 请大牛指正

[ 发自手机版 http://muchong.com/3g ]
5楼2012-08-06 08:54:30
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

to_Landau

铁杆木虫 (正式写手)

小木虫


小木虫: 金币+0.5, 给个红包,谢谢回帖
不错,LZ要是可以把文章贴出来就更好了。
Don'tsquandertime,that'sthestufflifeismadeof.
6楼2012-08-06 09:13:53
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

ZJboy

木虫 (著名写手)

引用回帖:
7楼: Originally posted by 小蜗牛8728 at 2012-08-06 10:46:08
计算和实验已经是并驾齐驱了。计算早已经不是实验的辅助。
只要能研究出科学问题,并具有创新性,就可以发文章。

就应该是这样
8楼2012-08-06 10:53:59
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 071000生物学求调剂,初试成绩343 +6 小小甜面团 2026-03-25 6/300 2026-03-26 23:01 by 不吃魚的貓
[考研] 材料与化工304求B区调剂 +3 邱gl 2026-03-26 6/300 2026-03-26 18:03 by 邱gl
[考研] 315分求调剂 +5 26考研上岸版26 2026-03-26 5/250 2026-03-26 12:11 by laoshidan
[考研] 299求调剂 +4 15188958825 2026-03-25 4/200 2026-03-25 22:56 by 418490947
[考研] 一志愿南航 335分 | 0856材料化工 | GPA 4.07 | 有科研经历 +6 cccchenso 2026-03-23 6/300 2026-03-25 22:25 by 544594351
[考研] 求调剂 +3 QiMing7 2026-03-25 3/150 2026-03-25 21:13 by 给你你注意休息
[考研] 0854电子信息求调剂 +7 α____ 2026-03-22 9/450 2026-03-25 13:37 by α____
[考研] 考研化学308分求调剂 +10 你好明天你好 2026-03-23 11/550 2026-03-25 10:23 by userper
[考研] 318求调剂 +5 plum李子 2026-03-21 8/400 2026-03-25 09:26 by aa331100
[有机交流] 有机合成求助 20+3 FENGSHUJEI 2026-03-23 5/250 2026-03-24 19:31 by 88817753
[考研] 307求调剂 +3 余意卿 2026-03-21 6/300 2026-03-24 15:03 by 余意卿
[考研] 求调剂一志愿武汉理工大学材料工程(085601) +5 WW.' 2026-03-23 7/350 2026-03-24 14:50 by sprinining
[考研] 277分求调剂,跨调材料 +3 考研调剂lxh 2026-03-24 3/150 2026-03-24 13:52 by JourneyLucky
[考研] 305分求调剂(食品工程) +5 Sxy112 2026-03-21 7/350 2026-03-24 12:27 by 544594351
[考研] 276求调剂。有半年电池和半年高分子实习经历 +9 材料学257求调剂 2026-03-23 10/500 2026-03-24 07:36 by wangy0907
[考研] 269求调剂 +4 我想读研11 2026-03-23 4/200 2026-03-23 21:25 by pswait
[考研] 工科0856求调剂 +5 沐析汀汀 2026-03-21 5/250 2026-03-23 17:56 by 海瑟薇-
[考研] 求老师收我 +3 zzh16938784 2026-03-23 3/150 2026-03-23 12:56 by ztnimte
[考研] 一志愿南大,0703化学,分数336,求调剂 +3 收到VS 2026-03-21 3/150 2026-03-21 18:42 by 学员8dgXkO
[考研] 求调剂 +3 eation27 2026-03-20 3/150 2026-03-20 19:32 by JourneyLucky
信息提示
请填处理意见