Formation of cyclic water hexamer in liquid helium: The smallest piece of ice

被引：575

作者：

Nauta, K ^{[1
]}

Miller, RE ^{[1
]}

机构：

[1] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA

来源：

SCIENCE | 2000年 / 287卷 / 5451期

关键词：

D O I：

10.1126/science.287.5451.293

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The cyclic water hexamer, a higher energy isomer than the cage structure previously characterized in the gas phase, was formed in liquid helium droplets and studied with infrared spectroscopy. This isomer is formed selectively as a result of unique cluster growth processes in liquid helium. The experimental results indicate that the cyclic hexamer is formed by insertion of water molecules into smaller preformed cyclic complexes and that the rapid quenching provided by the liquid helium inhibits its rearrangement to the more stable cage structure.

引用

收藏

页码：293 / 295

页数：3

相关论文

共 30 条

[1] Vibrational spectroscopy of methanol and acetonitrile clusters in cold helium droplets [J].

Behrens, M ;

Fröchtenicht, R ;

Hartmann, M ;

Siebers, JG ;

Buck, U ;

Hagemeister, FC .

JOURNAL OF CHEMICAL PHYSICS, 1999, 111 (06) :2436-2443

[2] THE DISTRIBUTION OF RINGS OF HYDROGEN-BONDED MOLECULES IN A MODEL OF LIQUID WATER [J].

BELCH, AC ;

RICE, SA .

JOURNAL OF CHEMICAL PHYSICS, 1987, 86 (10) :5676-5682

[3] The bifurcation rearrangement in cyclic water clusters: Breaking and making hydrogen bonds [J].

Brown, MG ;

Keutsch, FN ;

Saykally, RJ .

JOURNAL OF CHEMICAL PHYSICS, 1998, 109 (22) :9645-9647

[4] The asymmetric cage structure of (H2O)7 from a combined spectroscopic and computational study [J].

Brudermann, J ;

Melzer, M ;

Buck, U ;

Kazimirski, JK ;

Sadlej, J ;

Bush, V .

JOURNAL OF CHEMICAL PHYSICS, 1999, 110 (22) :10649-10652

[5] Structure and spectra of three-dimensional (H2O)n clusters, n = 8, 9, 10 [J].

Buck, U ;

Ettischer, I ;

Melzer, M ;

Buch, V ;

Sadlej, J .

PHYSICAL REVIEW LETTERS, 1998, 80 (12) :2578-2581

[6] Quantifying hydrogen bond cooperativity in water: VRT spectroscopy of the water tetramer [J].

Cruzan, JD ;

Braly, LB ;

Liu, K ;

Brown, MG ;

Loeser, JG ;

Saykally, RJ .

SCIENCE, 1996, 271 (5245) :59-62

[7]

Frochtenicht R, 1996, J CHEM PHYS, V105, P6128, DOI 10.1063/1.472472

[8] ROTATIONALLY RESOLVED SPECTROSCOPY OF SF6 IN LIQUID-HELIUM CLUSTERS - A MOLECULAR PROBE OF CLUSTER TEMPERATURE [J].

HARTMANN, M ;

MILLER, RE ;

TOENNIES, JP ;

VILESOV, A .

PHYSICAL REVIEW LETTERS, 1995, 75 (08) :1566-1569

[9] Infrared spectroscopy of small size-selected water clusters [J].

Huisken, F ;

Kaloudis, M ;

Kulcke, A .

JOURNAL OF CHEMICAL PHYSICS, 1996, 104 (01) :17-25

[10] Structures and energetics of the water heptamer: Comparison with the water hexamer and octamer [J].

Kim, J ;

Majumdar, D ;

Lee, HM ;

Kim, KS .

JOURNAL OF CHEMICAL PHYSICS, 1999, 110 (18) :9128-9134